Sungbong Choi (崔聖奉, born in February 18, 1990) is an artist of the Republic of Korea. After passing qualification examinations for elementary school and middle school, he graduated from Dae-Jeon Art High School, and made his famous debut on June 4 on Korea’s Got Talent 2011. He was the first runner-up of the talent show.
Sungbong Choi was born in Seoul, and was abandoned at an orphanage when he was three. He ran away from the orphanage to escape physical abuse, took a bus to Daejeon, and started living in the red light districts. His approach to Jeong-So Park for a music lesson was a life-changing event. Jeong-So Park agreed to teach him for free and got him more support from the church and ChildFund Korea.
After passing elementary school and middle school through qualification examinations,  Choi graduated from Dae-Jeon Art High School, and he is currently studying at the Department of Cultural Art Management at Kyung-Hee Cyber University. 
During his troubled youth, Choi claims he hid at a night school when he was 14 to escape area gang members. He learned how to read and write and applied for qualification examinations to pass elementary and middle school and enter high school. With hopes of learning music and spending his school years with friends, he entered Dae-Jeon Art High School. To earn school tuition fee and private lesson fees, he worked at a delivery service, but he suffered a grave injury while working the night shift. Choi seriously thought about dropping out of high school, and his music teacher testified that he was often absent because of the underprivileged surroundings. He gained admission to Hanyang University, but due to financial difficulties, was unable to pursue undergraduate education. Instead, he spent his days working as a day laborer.
Korea’s Got Talent
On 6 June 2011, Choi's performance of Ennio Morricone's "Nella Fantasia" on Korea's Got Talent moved judges and audience members to tears. He introduced himself as a manual laborer who had made a living selling gum and energy drinks for ten years. All three judges, Kolleen Park, Jang Jin and Song Yun-ah, were impressed with his vocal talent. Choi advanced to the finals of the competition, finishing second by only 280 votes.
Choi's performance clip was posted to YouTube and triggered a worldwide Internet sensation, receiving praise from pop stars Justin Bieber, BoA, Jung-Hwa Um, several hundred thousand fans on Facebook and also political figures including South Korea's former president Lee-Myung-Park. One version with English subtitles has triggered international press interest  and a worldwide view that Choi was "the next Susan Boyle". The video itself has received over 168,201,756 views as of May 31, 2017, and the number is still rising.
On 4 June 2011, after his first appearance on the show, some people accused him of concealing the fact that he had graduated from art high school although he was rarely able to attend classes due to his financial situation and was said to have received his diploma out of pity.
The KGT production team explained that “It was cut from the film during editing. He stated that he'd graduated from art high school at the second local tryout, and the judges, crews and hundreds of audience members heard that.” KGT later broadcast the re-edited version including the statement.
After his appearance on KGT, other major entertainment companies tried to persuade Choi to sign contracts with them and he signed up with Sony Music Korea Inc. but cancelled the contract in December 2011. He is currently with Bongbong Company.
Artistry – Crossover tenor
CNN commented that “His powerful baritone voice sounds as if it belongs to a man twice his age and build.”  He is currently experimenting with different genres, including Crossover. His vocal tone is soft and emotionally appealing, drawing on his life experiences.
- Invitation Performance by Korean President, Charity performances and speeches
- Invitation Performance by Chairman of Cisco [San Diego, U.S.A, 2012.04]
- You Fest Main Final Concert (with Paul Potts) [Madrid, Spain, 2012.09]
- Singing the Korean National Anthem at the inaugural ceremony of London Olympic [Seoul, 2012.07~08]
- Conducting Chorus of Global Multicultural Festival [Seoul, 2013.05]
- Halftime Performance at Suwon International Olympic “Peace cup” [Suwon, 2012.07]
- Teenager’s Healing Concert by Ministry of Environment [Seoul, 2012.07]
- Singing the Korean National Anthem at the National Assembly on Constitution Day (With the Millennium Symphony) [Seoul, 2012.07]
- Andy – Live In Concert at the Greek Theatre [LA, U.S.A, 2012.08]
- Accompanied Performance with Seoul Philharmonic
- Featuring Korea's Got Talent // Nella Fantasia, Cinema Paradiso [Sony Music] 
- Featuring Popera Vocalist Park Jung So Nella Fantasia // Nella Fantasia 
- Featuring Popera Vocalist Park Jung So Because He Lives // Amazing Grace 
Choi wrote a book entitled Singing is My Life – Memoir of My Journey from Homelessness to Fame (published by Mun Hak Dong Ne, Korea) about his life and career, which has now become a best seller. He said that he does not want to live his life shackled to his past and that he wrote the book in gratitude for the attention and love he has received, which has been of great comfort to him.
Broadcasting and Interviews
Choi has appeared on music shows, Documentary films and talk shows both Korea and overseas. He appeared with Justin Bieber on the Spanish TV programme El Hormiguero. CNN and ABC headlined the interview with him. Choi said that he wants to continue to overcome his experiences of the past 22 years. “It is a blessing that I can live my life without starving, being abused and freezing. I’ll keep taking on challenges and trying my best."
TV shows & Interviews
Korea's Got Talent season 1 [tvN 2011.06]
- Live Talk Show Taxi [tvN, 2011.09]
- Back Ji Yeon’s People inside [tvN, 2011.09]
- Documentary Film Rebel of 3 color talent [tvN, 2011.09]
- Story on Kind Ms.Mi-sun [tvN, 2011.11]
- Opera star 2012 [tvN, 2012.02]
- Morning Garden [KBS1, 2012.05]
- El Hormiguero [Antena3(Spain), 2012.05]
- KBS Speech 100℃ [KBS1, 2012.06]
- MBN News square [MBN, 2013. 02]
- Book club, CBS, CTS, CGV, TBS etc.……
Magazine Article Features
- Lady Kyung Hyang [KOREA, 2011,2013]
- Korean Daily 100℃ [KOREA, 2012],
- Woman Sense [KOREA, 2013]
- Woman’s life [KOREA,2013] etc.…
- Public Advertisement for Election Committee 
- Radio Campaign “Wait a Minute” [MBC]
- The Korea Highway Corporation “Belt Song”
Choi is an honorary ambassador of ChildFund Korea, the organization which helped him to improve his own life. He said that he won’t just tell the children to ‘have hope and dream’, but he wants to help them practically by giving them a chance of a better life. He is currently assisting starving children, orphans and foster families and he is also an honorary ambassador of the Chang Dong Social Welfare Center.
“People who suffer have feelings that can’t explain in language. And I hope my performance give consolation and uplifting to them.” He does performances and speeches for the neglected classes of people – multicultural families, single moms, Juvenile Hall, Hospice Centers etc.
He sends money or goods to those who need, with talent donation activity.
- Semifinal Winner of Korea’s Got Talent Season 1
- 9th Candle Award by Pop Culture Critic of College Union
- New Artist by Foreign Correspondents Club
1Department of Educational Psychology and Learning Systems, Florida State University, Tallahassee, FL 32306, USA
2Research and Development, Educational Testing Service, Princeton, NJ 08541, USA
3Intelligent Automation, Inc., Rockville, MD 20855, USA
Copyright © 2011 Valerie J. Shute et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
This paper reviews the research literature on the relationship between parental involvement (PI) and academic achievement, with special focus on the secondary school (middle and high school) level. The results first present how individual PI variables correlate with academic achievement and then move to more complex analyses of multiple variables on the general construct described in the literature. Several PI variables with correlations to academic achievement show promise: (a) communication between children and parents about school activities and plans, (b) parents holding high expectations/aspirations for their children's schooling, and (c) parents employing an authoritative parenting style. We end the results section by discussing the findings in light of the limitations of nonexperimental research and the different effects of children's versus parents' perspectives on academic achievement.
An important issue in identifying points of leverage in improving students’ academic achievement is determining how and to what degree parental involvement (PI) affects student achievement. Such knowledge might inform parenting practices as well as school-based policies, practices, and interventions that involve working with parents. For example, such research might help in the design and development of interventions that maximize parental involvement, where it has been shown to have the most positive and powerful effect. To assist in this endeavor, we reviewed the literature about the types of PI that might have an impact. We found that the literature on PI is quite “knotty”—complex and sometimes contradictory. This paper attempts to disentangle the knot by closely examining the current literature on the relationship between PI and academic achievement at the middle and high school levels.
The idea that parental involvement engenders students’ academic achievement is intuitively appealing to the point that society in general, and educators in particular, have considered PI an important ingredient for the remedy of many ills in education today. In the 1980s and early 1990s, studies were published that suggested the importance of parental involvement in school. In the mid-1990s, the popular press, policy makers, and school administrators actively advocated PI. Legislation was enacted, such as the Goals 2000: Educate America Act and the reauthorized Elementary and Secondary Education Act (ESEA) in the United States, which has made parents’ involvement in their children’s education a national priority . Schools have been encouraged to reexamine their parental involvement policies and programs and to demonstrate innovative approaches in order to obtain federal education dollars. For example, eligibility for Title I funding is now contingent on the development of agreements where families and schools assume mutual responsibility for children's learning.
Many practitioners and researchers support the policy direction of increased PI in their children’s academic lives, yet confusion persists regarding an appropriate definition of PI and the activities, goals, and desired outcomes of various PI programs and policies. Less is known about PI than is commonly assumed. Early studies suggesting the importance of PI are, unfortunately, treated as definitive, regardless of the equivocal nature of the data, and they are used to support the position that virtually all types of PI are important. According to Sui-Chu and Willms , PI has been treated too long as a one-dimensional construct.
It is apparent that identifying the influence of PI on academic achievement is complicated by at least three factors: (a) researchers use different definitions for the PI construct, (b) there is a paucity of experimental studies in the PI research literature, and (c) mediating factors and interacting variables in the PI-academic achievement story are often ignored. Any effort to clarify the role of PI in academic achievement must consider these issues.
This paper examines the research literature on the relationship between PI and academic achievement, with particular focus on the middle and high school level. Research has shown that in addition to students’ personal goals and expectations in this age group, other variables such as PI might exert considerable influence on the students’ academic achievement and behavior [3–5].
This paper will examine how PI has been defined, describe the relationships between PI variables and academic achievement, attempt to generalize the results, and finally discuss key areas of controversy and areas for further research.
We began this literature review process by gathering and reviewing many books, reviews, meta-analyses, and individual articles relating to the PI literature. The following online databases were employed to search and collect these sources.
A database that provides extensive access to educational-related literature from two printed journals: Resources in Education (RIE) and Current Index to Journals in Education (CIJE).
An online version of Psychological Abstracts that covers journal articles, book chapters, books, technical reports, and dissertations in psychology and psychological aspects of related disciplines.
An online system that provides access to several periodical indexes or databases. These databases contain citations, abstracts and many full-text articles from magazines, journals, and newspapers.
In addition to these databases, Google Scholar, the Brigham Library at Educational Testing Service, and the Strozier Library at the Florida State University were used to search for and acquire specific references. Google Scholar is a web site providing peer-reviewed papers, books, abstracts, and articles from academic publishers, professional societies, universities, and other scholarly organizations. The Brigham Library at Educational Testing Service and the Strozier Library at Florida State University both house comprehensive collections of educational, psychological, sociological, and testing literature.
3.2. Inclusion Criteria
The focus of the search was to access full-text documents using various search terms and keywords such as parental involvement, parental influence, peer influence, personality, academic achievement, and parental involvement. The search was not limited to a particular date range. From the large set of documents that we collected, a total of 74 documents met the criteria for inclusion in the literature review. The inclusion criteria consisted of topical relevance, focus on secondary education, and papers that presented results in terms of prominent PI variables. Additional inclusion criteria were papers that studied any mediating factors and interacting variables in the PI-student academic achievement relationship.
The majority of the documents we obtained were fifty individual studies reported in journal articles, book chapters, and research reports, followed by eight books, six longitudinal studies, five NELS:88 (i.e., the National Education Longitudinal Study of 1988, Institute of Education Sciences, n.d. ) reports, three extensive literature reviews, and two meta-analyses. We omitted qualitative studies and studies that did not meet the specified criteria.
3.3. Defining Parental Involvement
Figure 1 depicts the prominent aspects of PI found in the literature. We have grouped these variables into the two main categories of home and school activities.
Figure 1: Prominent aspects of parental involvement enacted at home and at school.
Many studies examine underlying aspects of PI, yet few do it in exactly the same way . Such differences make it difficult to assess cumulative knowledge across studies and can also lead to contradictory findings. We will point these out in the results section as they arise.
4. Literature Review Results
The results of the literature review are presented in terms of how PI variables impact student academic achievement, in two sections: (a) findings around single PI variables and (b) findings of large-scale studies that analyze the PI construct in terms of a set of underlying variables. Then, we discuss the findings in light of the limitations of nonexperimental research and the different effects of children's and parents' perspectives on academic achievement.
4.1. Single Parental Involvement Variables
In this section, we look at the results of different studies on prominent PI variables, including parent-child discussions about school, parental aspirations and expectations, parenting style, reading at home, checking homework, school involvement, and home rules and supervision.
4.2. Parent-Child Discussions about School
The parent-child discussion variable refers to ongoing conversations between parents and their children concerning school-related activities, programs, near- and long-term school plans, and other academic issues. This variable frequently yields the strongest positive association with academic achievement [2, 4, 7–11]. McNeal , for example, found that the only dimension of parental involvement that was associated with improved achievement and reduced problematic behavior (e.g., truancy) was parent-child discussion. Parent-child discussion has a significant relationship to student achievement (, ) and a significant inverse relationship to truancy (, ).
One interesting subtlety involving this variable is that talking with one’s mother is positively associated with academic achievement, but the association between talking with one’s father and academic achievement may depend on ethnicity and also on whether the child or parent is reporting [9, 12, 13]. For instance, talking with one’s father shows no correlation to academic achievement when data are collapsed across ethnicities, but talking with fathers for Black and Hispanic children is negatively related to achievement, while for Asian children talking with fathers is positively related to achievement.
4.3. Parental Aspirations and Expectations
Parental aspirations and expectations are often described collectively or used interchangeably in the literature. Taken together, aspirations and expectations reflect the degree to which parents presume that their child will perform well in school, now and in the future. This variable appears in many PI research studies and is generally shown to have a positive relationship to academic achievement. For example, parental aspirations/expectations is the strongest dimension in the Fan and Chen  meta-analysis examining effects on academic achievement (overall ), as well as the strongest predictor () in the Singh et al. ) structural equation modeling study. Parental expectations also has the largest effect size () and is one of the strongest predictors in determining academic achievement () in Jeynes’  meta-analysis on PI variables.
To date, of the PI papers we reviewed, the articles and large-scale studies that focus on parental expectations report a generally positive effect on student achievement. More specifically, Baker and Soden  note that high aspirations/expectations, coupled with an effective parenting style (i.e., moderate levels of parental support and supervision) are positively related to academic achievement. Similarly, Kurdek et al.  examined the relationship between parental supervision (measured via student report) and sixth-grade students’ academic achievement. Their results showed a clear quadratic relationship (i.e., inverted U function) between these two variables, where the highest levels of achievement (measured by grade point average) were associated with moderate levels of parental supervision, while worse achievement related to both low and high levels of supervision respectively. We now turn our attention to research involving parenting style.
4.4. Parenting Style
This PI variable is defined as a complex set of behaviors and/or attitudes by which parents demonstrate and communicate the values, behaviors, and standards that their children are expected to adopt. According to various researchers [10, 17–20], parenting style may be viewed along two dimensions: responsive and demanding (see Figure 2).
Figure 2: A cross of responsive and demanding parenting, yielding four distinct styles.
An authoritative parenting style is consistently and positively associated with student academic outcomes. This style is characterized by parents who are both responsive and demanding (lower right-hand corner of Figure 2). However, authoritarian and permissive styles (as well as indifferent styles) are negatively related to academic achievement [18, 21–24].
We examined 28 articles that studied parenting style in some form or another and its relationship to academic achievement. Representative characteristics of parenting style in the literature include authoritative style, joint decision making, PI in children’s lives, behavioral supervision, discussion of education with one’s children, firm disciplinary practices, permissive (or indifferent) styles, limit setting, strong communication, and maternal and paternal styles. The following are mixed findings in the literature on the variable of parenting style.
4.5. Positive Association
Authoritative parenting style is characterized by parents who develop and maintain close, warm relationships with their children while at the same time establishing structure and guidelines that are enforced as necessary. This parenting style was referred to in seven articles. They all reported a positive association with student achievement [25–30], except for one study that showed no effect for first generation Chinese Americans . Aunola et al.  similarly investigated the extent to which adolescents’ achievement is associated with parenting styles in their families. They found that adolescents from authoritative families showed significantly greater achievement compared to other adolescents who experienced different parenting styles ().
In some studies, parental affective support appeared to be one of the strongest predictors of students’ academic achievement. For example, in a study by Deslandes et al. , they reported that parental affective support was a strong predictor of school achievement for both males (, ) and females (, ). A child's perception of parenting style was referred to in one article, which reported that child perceptions of parenting style, involvement, and teacher/school communication factors strongly predicted school achievement (, ) . The recent meta-analysis conducted by Jeynes  showed a strong positive association () between parental style—defined as supportive, loving, helpful, and maintaining an adequate level of discipline—and academic achievement.
These positive associations may be due to the ability of parents with an authoritative parenting style to be loving and supportive and yet maintain an adequate level of discipline in the household. Parents with this parenting style also demonstrate qualities such as trust and approachability that motivate children to discuss academic problems and expectations with their parents. Additionally, such parents are more likely to make contact with teachers when students have academic or behavioral problems [10, 27].
4.6. No Association or Negative Association
PI in the form of behavioral supervision has shown either no association or a negative relationship with academic achievement . For example, firm disciplinary practices were found to be unrelated to a child’s academic success , based on a sample of 59 6–11-year-old African Americans from homeless families. A survey with Korean American adolescents showed that differences in parenting styles did not significantly relate to adolescents’ academic achievement . And McNeal  showed that PI in the form of supervision generally explained behavioral outcomes (e.g., truancy) (, ) but not cognitive outcomes (e.g., science achievement), and had greater effects for more affluent White students (, ) than for less-advantaged students of any other race. This finding may be the result of minority parents feeling less comfortable getting involved in school-based activities and also being less likely to initiate meetings with school teachers when their child is facing an academic problem. Past negative experiences shape parents’ involvement with educational institutions .
On the other hand, Deslandes et al.  and Chen  found a negative relationship between parental supervision and children’s achievement. This negative association might be related to the fact that some parents increase their support/supervision when they become concerned with their children’s underachievement. In other words, parents adopt strategies based on their children’s academic performance [4, 8].
4.7. Other PI Variables
Fairly consistent associations between other PI variables and academic achievement include the following.(i)School involvement, which refers to participation in parent-teacher organizations (PTOs) or associations (PTAs), community involvement, volunteer work, and so on, has shown a positive association with academic achievement [11, 25]. For instance, Adeyemo  examined the effects of different parental involvement dimensions on academic achievement for 250 secondary school students and found that parental involvement in their child's school environment significantly affected students’ academic achievement (, ).(ii)Parent-teacher communication, described as parents’ communication with teachers regarding their child's progress, has shown a positive association with students’ academic achievement (, ) .(iii)Parents checking child’s homework, has shown a positive association with academic achievement in some studies [10, 11]. For instance, Keith et al.  found that students whose parents were involved in checking their homework showed higher achievement () than students whose parents were not involved in checking homework. Other studies, however, have shown a negative association between parents checking their children’s homework and academic achievement .(iv)Home supervision and rules, refers to moderate levels of parental support [10, 16], and when combined with appropriate monitoring of home-related behaviors (such as television viewing) has shown positive associations with academic achievement [11, 35]. Children of parents who closely monitor their activities spend less time watching television and more time on school-related activities, which in turn shows a positive relationship with academic achievement () .(v)Reading at home, which reflects parental modeling and support of the child’s reading along with the provision of a stimulating literacy environment, has shown a positive association with academic achievement [3, 11, 25, 36]. For example, in a study by Chen , the effect size () suggested a strong relationship between parental involvement in their child’s reading at home and academic achievement ().
To summarize, there is seldom more than a small-to-moderate association between any individual PI variable and academic achievement. The strongest associations appear to be (a) discussions about school activities between parent and child (positive), (b) parents’ aspirations/expectations for their children (positive), and (c) parental styles, particularly authoritative style (positive) and authoritarian and permissive styles (negative).
While each of the PI variables presented in this section has shown some relationship to students’ academic achievement, it is also clear from recent research that the effects are complex. For instance, studies have found interactions between some of these PI variables and academic engagement/involvement (e.g., time spent on homework and paying attention in class), ethnicity, race, family structure, family characteristics (such as parents’ education), maternal employment status, socioeconomic status, and gender [9–11, 13, 27, 37–40]. Consequently, we can view these as potentially moderating or mediating variables in relation to student achievement. For example, in a longitudinal study conducted by Dearing et al.  involving 167 children, the effect of PI on the children’s academic achievement (i.e., reading) was moderated by maternal education. We now explore more complex analyses of the PI construct.
4.8. Large-Scale Analyses of the PI Construct
In this section, we describe six large-scale studies that have been conducted in the area of PI and academic achievement: (1) Fan and Chen , (2) Jeynes , (3) Desimone , (4) Keith et al. , (5) Chen , and (6) Sui-Chu and Willms . Each of these studies looks at how a set of underlying variables may illuminate the relationship between overall PI and student academic achievement.
The first study is a meta-analysis conducted by Fan and Chen . The sample consisted of 133,577 students in 25 different studies, yielding 92 correlation coefficients. The method they used was to calculate average correlations between PI (overall construct as well as specific dimensions) and academic achievement. PI dimensions included educational aspirations/expectations for children, communication with children about school-related matters, parental supervision and home structure related to school matters, parental participation in school activities, and other/general PI activities.
The result from their analysis regarding the correlation of overall PI to academic achievement is . Based on Cohen’s  guidelines about the magnitude of correlation as an effect-size measure, a correlation of .25 is a “medium” effect size. The largest correlation was between parents’ aspirations and expectations for children’s educational achievement (average about .40), and the smallest correlation involved the variable parents’ supervision of the child at home (e.g., rules for watching TV and doing school work), with an average .
Similarly, our second large-scale study reported by Jeynes  found a positive relationship between PI and academic achievement. In his meta-analysis, Jeynes included 52 studies that involved more than 300,000 participants. Jeynes aimed to determine the influence of PI on the educational outcomes of urban secondary school children. For this study, PI was defined as parental participation in the educational processes and experiences of their children. The specific PI variables included parental expectations, parent-child communication about school activities, parents checking homework before submission, and parental style (i.e., helpful and supportive parental approach).
Results revealed that the general PI variable yielded statistically significant outcomes of .50 to .55 of a standard deviation unit. The Hedges’ measure of effect size was reported. Like the findings from the Fan and Chen  meta-analysis, this index indicated that for overall academic achievement, the effect size for parental expectations was the largest among all of the other variables (Hedges’s , which represents a large effect size). The remaining variables (i.e., parent-child communication, parents checking homework, and parental style) showed medium effect sizes (Hedges’ , .38, and .40, resp.).
Desimone  conducted a regression analysis examining 12 PI variables on one achievement variable (scores on a standardized test of mathematics) for a large sample () of 8th graders in the NELS: 88 data. The adjusted for this regression is .29, which corresponds to an -value of .54 for overall PI as considered by the set of individual variables. This falls in Cohen’s range of large effect sizes.
The regression results of the same 12 variables on two other achievement variables—scores on a standardized test of reading, and an average of self-reported grades in English, mathematics, science, and social studies—were similar to those reported for mathematics. These other regressions showed values of .26 and .22, respectively.
Among the 12 variables predicting mathematics outcome, the strongest predictors of achievement include (a) students reporting that they talk with their parents about school (positive relationship), (b) parents reporting contact with the school (negative relationship), and (c) students reporting that parents check their homework regularly (negative relationship).
One interesting finding from the study concerns whether the student or the parent was reporting on rules in the home (rules on homework, GPA, chores, TV, friends, etc.). That is, if the child perceives that parents have rules about doing chores, watching television, and going out with friends, there is a positive relationship to achievement. However, if the parent reports having rules in the home—such as maintaining grade average, doing homework, and being responsible for certain household chores —there is a negative relationship on math achievement. Similarly, there is an opposite relationship involving the variable talking about school. From the students’ report, this represents a positive relationship to math achievement, but from the parents’ report, this represents a negative relationship.
Desimone  further examined the data in terms of ethnicity and reported some interesting patterns of predictor variables. For example, the variable talk with father about school showed a positive relationship to math achievement for Asian children, a negative relationship for Black and Hispanic students, and no significant relationship for White students. The variable rules on homework, chores, TV, and so forth was positively related to math achievement if reported by Asian children and negatively associated with math achievement if reported by White parents. Finally, the variable parents check homework from the students’ perspective has a significant negative association with achievement across all ethnicities.
A fourth large-scale study that reported a positive relationship between PI and academic achievement was conducted by Keith et al. . This widely cited structural analysis study attempts to establish causal relationships using a sample of about 22,000 8th grade students. This study uses the technique of structural equation modeling (SEM), which entails defining a causal model to which the data are fitted.
Some of the variables that were shown to best fit the causal model relating PI and student achievement included (a) talking about school, (b) aspirations/expectations, (c) structure in the home in the form of rules, and (d) participation in school activities such as PTO. Figure 3 shows these four variables and example topics from the NELS: 88 survey.
Figure 3: Original four variables underlying the PI construct in the Keith et al.  study. Note: adapted from “Does parental involvement affect eighth-grade student achievement? Structural analysis of national data,” by T. Z. Keith, P. B. Keith, G. C. Troutman, P. G. Bickley, P. S. Trivette, and K. Singh, 1993, School Psychology Review, 22(3), pp. 483, 486.
Results showed that these four variables are not significantly correlated to one another, and thus PI is multidimensional. In fact, when the structure and participation variables were removed and other variables added (e.g., family background, previous achievement, and ethnicity), as shown in the model depicted in Figure 4, the model fit better.
Figure 4: Keith et al.’s  structural equation model of parental involvement variables and student achievement. Note: from “Does parental involvement affect eighth-grade student achievement? Structural analysis of national data,” by T. Z. Keith, P. B. Keith, G. C. Troutman, P. G. Bickley, P. S. Trivette, and K. Singh, 1993, School Psychology Review, 22(3), p. 488.
The student achievement variable (on the right of Figure 4) was derived from scores from short standardized tests of reading, math, science, and social studies (history, citizenship, and geography), developed for NELS by Educational Testing Service (ETS). The largest predictor of student achievement is, not surprisingly, students’ previous achievement. However, Keith et al.  also found unique variance attributed to the PI variable.
Additionally, Keith et al.  found unique variance attributable to ethnicity. The authors coded ethnicity as 1 for White and Asian and 0 for Black, Hispanic, and Native American. While White and Asian students showed generally higher achievement than Black, Hispanic, and Native American students, what is interesting is that parents of Ethnicity 0 reported more PI than parents of Ethnicity 1 (shown by the inverse relation between ethnicity and PI). Finally, the data for family socioeconomic status (SES, reflected by the family background variable) showed that higher SES was associated with higher student achievement.
Our fifth large-scale study, conducted by Chen , was similarly a structural analysis investigating students in different grade levels (i.e., grades 9 to 11) in terms of their perceived academic involvement from their parents. This involvement was then examined relative to academic achievement directly and also indirectly through students’ self-reported academic engagement such as study time (which included hours that students reported doing their homework), studying during a typical week, and motivation to go to school.
Data were collected through questionnaires administered to 270 Hong Kong students in the three grade levels. Structural equation modeling (SEM) analysis revealed interesting findings regarding parental support. The first finding showed that the indirect relationship of the students' perceived PI to academic achievement was mediated by perceived academic engagement. This finding, however, was significant only for 9th grade students (). The second finding revealed that perceived PI was directly and negatively related to academic achievement for all grade levels but statistically significant only for the 10th grade students. In short, (a) perceived PI appears to predict academic achievement, and (b) higher levels of perceived PI are associated with lower levels of achievement, especially for 10th graders in Hong Kong.
In our final large-scale study, Sui-Chu and Willms  computed regression and factor analyses to predict mathematics achievement using PI factors (i.e., home discussion, home supervision, school communication, and school participation), family variables (i.e., SES, number of siblings, number of parents, learning problem, and behavioral problem), and ethnicity (i.e., White, Asian or Pacific Islander, Hispanic, Black, or Native American) using NELS: 88 data for mathematics.
All of the variables were significant at the level except for the nonsignificant effects of (a) number of parents in the home, and (b) home supervision (e.g., rules), both of which may be contrary to conventional wisdom (i.e., the deleterious effects of single-parent homes on achievement, and the importance of rules). Of the PI factors, the largest predictor of mathematics achievement is again the degree to which parents and their children talk about school (i.e., home discussion). Finally, Sui-Chu and Willms  reported that PI made a significant unique contribution to explaining variation in students’ academic achievement, over and above the effects associated with parental background.
4.9. Limitations of Nonexperimental Research
After reviewing the PI literature, it is worth noting some of the main limitations of PI research in conjunction with their possible ramifications. These include the following:(i)Use of nonexperimental design leads to the inability to distinguish between correlation and causation.(ii)Inconsistent definitions of PI leads to difficulty in comparing/interpreting findings across studies that define this construct differently.(iii)Lack of isolation of PI effects leads to the inability to distinguish effects due to PI from genetic and other environmental variables.
One observation from reviewing this literature concerns the need to be cautious about interpreting correlational data. For instance, we saw earlier that the variable parents checking homework is often negatively associated with student academic achievement. This is likely because parents tend to check homework more vigilantly when there are academic problems, making PI in the form of homework checking an effect rather than a cause of academic achievement. Further, actually doing homework (by the child) has been shown to be positively associated with academic achievement .
In addition, there may be other mediating factors relating to PI effects on student achievement that have not yet been adequately researched. For example, as part of their research and analysis using structural modeling, Keith et al.  examined mediating variables involving PI and academic achievement. As shown in Figure 5, PI is characterized as exerting its effect on student achievement via the mediating variable of homework, where more PI is associated with doing more homework, which in turn is associated with higher achievement. Also, according to this model, doing more homework is associated with less TV viewing.
Figure 5: Relationship between PI and achievement with homework and television viewing as mediating variables. Note: adapted from “Does parental involvement affect eighth-grade student achievement? Structural analysis of national data,” by T. Z. Keith, P. B. Keith, G. C. Troutman, P. G. Bickley, P. S. Trivette, and K. Singh, 1993, School Psychology Review, 22(3), p. 490.
The literature we reviewed has paid little attention to possible interactions among classes of important variables. In short, caution is warranted in attributing direct effects of parenting, genes, or social/environmental factors because all three may interact with each other in predicting academic achievement.
4.10. Children’s versus Parents’ Perspectives
As noted earlier, the literature shows that children’s perceptions about PI variables appear to be better predictors of student achievement than parents’ perceptions [8, 9, 42]. In addition, most of the studies show that PI and its probable influence on achievement declines as children progress through school [5, 40]. There are several possible reasons for this decline: (a) middle and high schools become more complex, with more demanding curricula that can intimidate parents; (b) there are fewer school outreach efforts to involve parents in the secondary school years; (c) parents may exert progressively less influence over their adolescent children as they become more independent [8, 37, 43, 44]. Regarding the latter point, as students become older, they start to rely on peers for advice and support more than on their parents. Peer group influences have a powerful effect on children’s motivation to do well in school [45, 46].
The fields of education and psychology appear to be adjusting to the challenge directed toward the more traditional view that parenting has a very large influence on children's development. What the emerging view will be remains to be seen. One possible view might be similar to the view expressed by Cohen , who argued that while both parent and peer influences are modest, the peer influence is smaller and parent influence is larger than estimated by Harris, who asserted that differences in parenting have essentially no lasting influence on how children turn out .
Despite the relative modesty of the influence of PI in the research cited in this paper, there is a need for caution in underemphasizing the importance of parents’ efforts on behalf of their children, academically and otherwise. Even Harris  warns that her theory (which does not attribute lasting parental influence) is not intended to imply that children can get along without their parents. In fact, “children are emotionally attached to their parents (and vice versa), are dependent on them for protection and care, and learn skills within home that may prove useful outside it; these facts are not questioned” [48, p. 461].
Thus, Harris affirmed the key role of parents in protection, care, and support of learning. Furthermore, given that parents play a key role in selecting or otherwise determining a child’s home, school, neighborhood, and cultural group, we can see that parents have an importance that may not be fully captured in these studies. And, as Levitt and Dubner  have noted, “Clearly, bad parenting matters a great deal…[U]nwanted children—who are disproportionately subject to neglect and abuse—have worse outcomes than children who are eagerly welcomed by their parents” (pp. 153-154).
Parents appear to have an important opportunity to influence their children’s academic achievement though the influence may not be as great as traditionally believed. Correlational studies have found modest associations between various PI variables and student academic achievement, with some of the most consistent relationships being reported for (a) parents talking with their child about school [2, 4, 8–11, 50], (b) parents holding high expectations for students’ academic achievement [1, 3, 10, 14], and (c) parents employing an authoritative (not authoritarian) parenting style [10, 17, 19, 20]. Citing the inability of correlational studies to determine causality, as well as the findings of twin and adoption studies, researchers have estimated the impact of PI variables on academic achievement as quite modest [44, 47–49]. Others have agreed that the influence of parents is modest but go on to assert that peer influence is likewise modest . It seems that both parents and peers can have an influence on a child’s academic achievement.
Given that parents have limited influence over the child’s peer relationships, direct parental influence remains an opportunity to leverage those factors for the benefit of the child, including their academic achievement. The design of policies, practices, and interventions should reflect an understanding of these findings about the nature and magnitude of parental influence on children’s academic achievement.