Most parents want their children to succeed in school but are often unaware that family life itself has a significant impact on their child’s academic capacity. Below are the effects of the intact family on children’s educational achievement and school behavior, as well as its effect on the home environment.
Family intactness is one of the greatest positive influences 1) on high school graduation rates. Only the fraction of the adult population that has graduated from high school surpasses family intactness in its degree of influence. The former is presumably a strong effect of inter-generational behavior modeling and may as well indicate norms-setting. These influences remain and continue to be precisely determinable when earnings controls are added. This is in contrast to college graduation's influence, which is indeterminate whether or not earnings controls are included. The fractions of blacks or Hispanics in an area has no determinable influence on high school graduation rates once other controls2) have been implemented.
Family intactness should be viewed as one of the principle generative agents of high school graduation levels in an area: Part of the strong, beneficial influence of high school graduation levels on the outcomes studied should be attributed to family intactness' influence on high school graduation rates.
Elementary school children from intact biological families earn higher reading and math test scores than children in cohabiting, divorced-single, and always-single parent families.3) Adolescents from non-intact families have lower scores than their counterparts in intact married families on math, science, history, and reading tests.4) Adolescents living in intact married families or married stepfamilies (with stepfathers) performed similarly on the Peabody Vocabulary Test, but adolescents living in single-mother families or in cohabiting stepfamilies (with their biological mother) did worse than those in intact families.5)
Adolescents from single-parent families and cohabiting families are more likely to have low achievement scores, lower expectations for college, lower grades, and higher dropout rates than children from intact biological families (after controlling for other family socioeconomic factors).6)
Over 57 percent of children who live in intact biological families enter college, compared to 32.5 percent of children in stepfamilies, 47.5 percent of children in single-parent families, and 31.8 percent of children who live in families with neither parent present.7) Students from disrupted families are less likely to complete four-year college than their peers from intact biological families.8)
According to the National Longitudinal Survey of Adolescent Health (Waves I and II), high school students who live in intact married families have a higher average combined GPA in English and Math (2.9) than those in married stepfamilies, divorced families, or intact cohabiting families (2.6) and those in always single parent families or cohabiting stepfamilies (2.5).9) (See Chart)
Based on the 1997 National Longitudinal Survey of Youth, 28 percent of students who grew up in an intact married family received mostly A’s, followed by students from intact cohabiting families (21 percent), single divorced parent families (18 percent), married stepfamilies (15 percent), cohabiting stepfamilies (11 percent), and always single parent families (9 percent).10) (See Chart)
Similarly, 36 percent of individuals who came from intact, married families received a Bachelor’s degree, followed by those from intact, cohabiting families (20 percent), single divorced-parent families (17 percent), married stepfamilies (16 percent), always-single parent families (8 percent), and cohabiting stepfamilies (7 percent).11) (See Chart Below)
First-grade students born to married mothers are less likely to behave disruptively (i.e. disobey a teacher, be aggressive with other children) than those born to single or cohabiting mothers.12) Adolescents in single-parent families, married stepfamilies, or cohabiting stepfamilies are more likely than adolescents in intact married families to have ever been suspended or expelled from school, to have participated in delinquent activities, and to have problems getting along with teachers, doing homework, and paying attention in school.13) Children and adolescents in intact married families are more likely to care about doing well in school, to do schoolwork without being forced, to do more than “just enough to get by,” and to do their homework.14) Adolescents who live in blended families and stepfamilies are less positively engaged in school than are adolescents from intact biological families.15) Compared to adolescents from intact married families, those from divorced families and cohabiting families have many more unexcused absences and skip more classes.16) Students from stepfamilies and single-parent families are three times as likely to drop out of school as students from intact biological families, even when controlling for socioeconomic status.17) Eighty-five percent of adolescents in intact biological families graduate from high school, compared to 67.2 percent in single-parent families, 65.4 percent in stepfamilies, and 51.9 percent who live with no parents.18) Sixty-nine percent of children from intact biological families applied to college, according to one study, compared to only 60 percent of students who were not from intact families.19) One study revealed that children born to married mothers are nearly two times more likely to finish high school than children born to unmarried mothers.20)
The National Survey of Children’s Health shows that children who live with both biological parents or with two adoptive parents are less likely to have their school report behavior problems to their parents than are children who live in households that do not include both parents.21) (See Chart)
According to the National Longitudinal Study of Adolescent Health (Waves I and II), 20 percent of students in Grades 7-12 who live with their married, biological parents have ever been suspended or expelled from school. By contrast, more than 50 percent of adolescents who live with a single, never-married parent have ever been suspended or expelled. In between are those who live with two biological cohabiting parents (34.3 percent), those living with a step-parent (35.9 percent), those whose parents are divorced (37 percent), and those who live with one biological cohabiting parent (40.8 percent). 22) (See Chart Below)
The adolescent children of single-parent families or stepfamilies reported that their parents had lower educational expectations for them, were less likely to monitor schoolwork, and supervised social activities less than the parents of children in intact biological families.23)
Divorce and traumatic life-events impact the likelihood that a child will finish high school. One study found that children who experienced marital dissolution before they were 18 years old had a significantly lower chance of finishing high school than children in intact families. Also, the younger the child was at the time of his or her parents’ divorce, the less of a chance that they would graduate.24)
Whereas 31.3 percent of sons and 26.7 percent of daughters from intact biological families plan to get a college degree, 42.4 percent of sons and 35.9 percent of daughters in single-parent families do not plan to get a college degree.25) Sixty percent of mothers in intact married families expected their child to graduate college, compared to 40 percent of mothers in cohabiting stepfamilies and 36 percent of always-single mothers.26) About 40 percent of sons and 44.7 percent of daughters from intact biological families aim to get more education after obtaining their undergraduate degree, compared to 30.7 percent of sons and 35.3 percent of daughters from single-parent families.27)
The intact biological family facilitates parental involvement in adolescent children’s education.28) Adolescents in intact biological families reported that their parents participated more in school, that they discussed school more with their parents, and that they knew more of their friends’ parents than those in single-parent families and stepfamilies.29)
According to the National Survey of Children’s Health, children who live with both biological parents or two adoptive parents are only one third as likely to have ever repeated a grade in school as those who living with their mother only, with one biological parent and a stepparent, or in other family configurations, such as with their father only or with foster parents.30) (See Chart)
Children in intact married families are more likely to worship regularly.31) First-graders and kindergartners whose parents attend religious services are less likely to experience anxiety, loneliness, low self-esteem, and sadness.32) Compared to children whose parents did not attend church at all, children whose parents attended church services exhibited more self-control while under parental supervision in their homes.33) For children from families in poverty, regular weekly worship has profound positive effects on their educational attainment.34) Adolescents who attend church regularly tend to complete more years of school.35)
The National Survey of Children’s Health showed that only 21 percent of children who worship frequently and live with both biological parents or with two adoptive parents are the object of their school reporting behavior problems to parents, compared to a much larger 53 percent of children who worship less than monthly and live in single-parent or reconstituted families.36) (See Chart)
According to National Longitudinal Study of Adolescent Health, teenagers in intact married families who attend religious services weekly or more than monthly have a higher combined English and math GPA (2.9) than those in non-intact families who attend religious services monthly or never (2.5).37) (See Chart Below)
The National Longitudinal Survey of Adolescent Health also showed that teenagers who attend religious activities weekly or more had the highest average combined GPA for English and Math (2.9).38) (See Chart Below)
Intact married families are stronger economically.39) Infants and toddlers from higher-income families are more likely to master age-appropriate cognitive and language skills than those from lower-income families.40) Intact biological families tend to have larger incomes,41) which affects the neighborhoods in which families can afford to live42) and thereby the quality and resources of the schools their children will attend. Intact biological families save earlier and more for (and expect to spend more to support) their children’s first year in college.43)