American Children’s Screen Time: Diminished Returns of Household Income in Black Families

While increased household income is associated with overall decreased screen time for children, less is known about the effect of racial variation on this association. According to Minorities’ Diminished Returns (MDRs) theory, family income and other economic resources show weaker association with children’s developmental, behavioral, and health outcomes for racialized groups such as black families, due to the effect of racism and social stratification. In this study, we investigated the association, by race, between family income and children’s screen time, as a proxy of screen time. This longitudinal study followed 15,022 American children aged 9–11 over a 1-year period. The data came from the baseline of the Adolescent Brain Cognitive Development (ABCD) study. The independent variable was family income, and it was categorized as a three-level nominal variable. The dependent variable, screen time, was a continuous variable. Ethnicity, gender, parental education, and marital status were the covariates. The results showed that family income was inversely associated with children’s screen time. However, there was a weaker inverse association seen in black families when compared with white families. This was documented by a significant statistical interaction between race and family income on children’s screen time. Diminished association between family income and children’s screen time for black families, compared with white families, is similar to MDRs and reflects a health risk to high-income black children. In a society where race and skin color determine opportunities and treatment by society, children from middle class black families remain at risk across multiple domains. We should not assume that income similarly promotes the health of all racial and ethnic groups. Addressing health and behavioral inequalities requires interventions that go beyond equalizing socioeconomic resources for black families. Marginalization, racism, and poverty interfere with the normal family income-related development of American children.

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Parental Education and Children’s Sleep Problems: Minorities’ Diminished Returns

International journal of epidemiologic research ◽

10.34172/ijer.2021.06 ◽

2021 ◽

Vol 8 (1) ◽

pp. 31-39

Author(s):

Shervin Assari

Keyword(s):

Parental Education ◽

Sleep Problems ◽

Continuous Variable ◽

Latino Families ◽

Inverse Association ◽

Cross Sectional ◽

White Families ◽

American Children ◽

Children’S Sleep ◽

Black And Latino

Background and aims: While increased parental education reduces children’s sleep problems, less is known about racial variation in such protection. According to Minorities’ Diminished Returns (MDRs) theory, economic resources such as parental education show weaker health effects for minority groups such as Blacks and Latinos than non-Latino Whites, which is due to racism and social stratification. In this study, we investigated the association between parental education and children’s sleep problems, as a proxy of sleep problems, by race. Methods: This cross-sectional study included 11718 American children aged 9-10. All participants were recruited to the Adolescent Brain Cognitive Development (ABCD) study. The independent variable was parental education, a five-level nominal variable. The dependent variable – sleep problems, was a continuous variable. Race/ethnicity was the effect modifier. Age, sex, and marital status were the covariates. Mixed-effects regression models were used for data analysis. Results: Parental education was associated with children’s sleep problems. However, there was a weaker inverse association seen in non-Latino Black and Latino families compared to non-Latino White families. This was documented by a significant statistical interaction between race and ethnicity and parental education on children’s sleep problems. Conclusion: Diminished protective effect of parental education on children’s sleep problems for non-Latino Black and Latino families compared to non-Latino White families is similar to the MDRs in other domains. Worse than expected sleep may contribute to higher-than-expected health risks of middle-class Black and Latino children.

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Parental Education, Household Income, Race, and Children’s Working Memory: Complexity of the Effects

Brain Sciences ◽

10.3390/brainsci10120950 ◽

2020 ◽

Vol 10 (12) ◽

pp. 950

Author(s):

Golnoush Akhlaghipour ◽

Shervin Assari

Keyword(s):

Working Memory ◽

Household Income ◽

Parental Education ◽

Black Families ◽

Card Sorting ◽

Mixed Effect ◽

White Children ◽

Economic Implications ◽

Highly Educated ◽

American Children

Background. Considerable research has linked social determinants of health (SDoHs) such as race, parental education, and household income to school performance, and these effects may be in part due to working memory. However, a growing literature shows that these effects may be complex: while the effects of parental education may be diminished for Blacks than Whites, household income may explain such effects. Purpose. Considering race as sociological rather than a biological construct (race as a proxy of racism) and built on Minorities’ Diminished Returns (MDRs), this study explored complexities of the effects of SDoHs on children’s working memory. Methods. We borrowed data from the Adolescent Brain Cognitive Development (ABCD) study. The total sample was 10,418, 9- and 10-year-old children. The independent variables were race, parental education, and household income. The primary outcome was working memory measured by the NIH Toolbox Card Sorting Test. Age, sex, ethnicity, and parental marital status were the covariates. To analyze the data, we used mixed-effect regression models. Results. High parental education and household income were associated with higher and Black race was associated with lower working memory. The association between high parental education but not household income was less pronounced for Black than White children. This differential effect of parental education on working memory was explained by household income. Conclusions. For American children, parental education generates unequal working memory, depending on race. This means parental education loses some of its expected effects for Black families. It also suggests that while White children with highly educated parents have the highest working memory, Black children report lower working memory, regardless of their parental education. This inequality is mainly because of differential income in highly educated White and Black families. This finding has significant public policy and economic implications and suggests we need to do far more than equalizing education to eliminate racial inequalities in children’s cognitive outcomes. While there is a need for multilevel policies that reduce the effect of racism and social stratification for middle-class Black families, equalizing income may have more returns than equalizing education.

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Parental Education and Spanking of American Children: Blacks’ Diminished Returns

World Journal of Educational Research ◽

10.22158/wjer.v7n3p19 ◽

2020 ◽

Vol 7 (3) ◽

pp. p19

Author(s):

Shervin Assari

Keyword(s):

Socioeconomic Status ◽

Health Disparities ◽

Educational Attainment ◽

Parental Education ◽

Black Families ◽

Inverse Association ◽

Child Exposure ◽

White Families ◽

Highly Educated ◽

Parental Educational Attainment

Background: Based on the Minorities’ Diminished Returns (MDRs) framework, high socioeconomic status (SES) indicators such as parental education shows weaker protective effects against adverse experiences for Blacks than Whites. For example, Black children with highly educated parents report high levels of depression, anxiety, suicide, smoking, obesity, and chronic disease. Limited knowledge exists on MDRs of parental education on the child’s exposure to spanking by the mother. Aims: Built on the MDRs framework, we tested the hypothesis of whether the effect of parental education on the child’s exposure to spanking by the mother differs in Black and White families. We hypothesized that: 1) there is an inverse association between mothers’ educational attainment and child spanking, and 2) the effect of mothers’ educational attainment on mothers’ spanking of the child is weaker for Black than White families. Methods: We used data from the Fragile Families and Child Well-being Study (FFCWS), a 9-year follow up study of a random sample of births in cities larger than 200,000 population. In this analysis, 2722 Black or White families were followed. The main predictor was parental educational attainment at birth. The outcomes were exposure to spanking at ages 3, 5, and 9.Logisticregression was used for data analysis. Results: Higher parental educational attainment at birth was inversely associated with the child’s exposure to spanking by the mother among Whites, not Blacks. We also found a significant interaction between parental educational attainment at birth and race, suggesting that the associations between parental education and child exposure to spanking by the mother at ages3, 5, and 9were weaker for Black than White families.Conclusions: Diminished returns of parental educational attainment in terms of reducing children’s exposure to trauma and stress may be a mechanism that contributes to racial health disparities, particularly poor health of children in highly educated Black families. That is a smaller protective effect of parental education on reducing undesired exposures for Black than White children may be one of the mechanisms that may explain why children develop worse than expected physical, mental, and behavioral health in high SES Black families. Not all health disparities are due to racial differences in SES, but some of them are also secondary to the diminishing returns of socioeconomic status indicators such as parental education for racial minorities. Research should study contextual, structural, family, and behavioral factors that reduce Black families’ ability to mobilize their human capital and secure health outcomes for themselves and their children.

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Family Income and Gang Presence in the Neighborhood: Diminished Returns of Black Families

Urban Science ◽

10.3390/urbansci4020029 ◽

2020 ◽

Vol 4 (2) ◽

pp. 29 ◽

Cited By ~ 3

Author(s):

Shervin Assari ◽

Shanika Boyce ◽

Cleopatra H. Caldwell ◽

Mohsen Bazargan ◽

Ron Mincy

Keyword(s):

Socioeconomic Status ◽

Health Outcomes ◽

Maternal Education ◽

Family Income ◽

Black Families ◽

Categorical Variables ◽

Structural Factors ◽

Protective Effects ◽

White Families ◽

Poor Outcomes

Background: Based on the Minorities’ Diminished Returns (MDRs) framework, indicators of high socioeconomic status, such as higher family income, show weaker protective effects on various developmental, behavioral, and health outcomes for Black than White families. As a result of these MDRs, Black families who access education and income still report high levels of depression, smoking, obesity, and chronic disease. Limited knowledge exists on MDRs of income on neighborhood quality. Aims: Built on the MDRs framework, this study tested the hypothesis of whether the effect of family income and maternal education at birth on neighborhood gang presence varies between Black and White families. The hypotheses were that: (1) higher income families would report lower gang presence in their neighborhood, and (2) compared to Whites, Blacks would show weaker protective effects of family income on gang presence in their neighborhood. Methods: The Fragile Families and Child Wellbeing Study is a 15-year follow up study of a random sample of births in cities with larger than 200,000 population. Two thousand nine hundred and nineteen White or Black families were included and were followed from birth of their child for 15 years. The predictors were family income and maternal education at birth, treated as categorical variables. The outcome was gang presence in the neighborhood at age 15. Logistic regression was used for data analysis. Results: Higher maternal education at birth was inversely associated with gang presence in the neighborhoods, while family income at birth did not show an effect on reducing gang presence in the neighborhood at age 15. Family income at birth and race interact, suggesting that the association between family income at birth and gang presence in the neighborhood at age 15 was weaker for Black than White families. Our race-stratified models also showed an inverse effect of family income at birth on gang presence in the neighborhood at age 15 in White but not Black families. Conclusions: Diminished returns of family income at birth on neighborhood safety and social disorder may be a mechanism that contributes to racial health disparities in higher socioeconomic status and also poor outcomes for Black families across socioeconomic status (SES) levels. That is, a smaller protective effect of family income on changing the real lives of Black compared to White families may be one of the mechanisms by which health is worse than expected in Black families, across the entire SES spectrum. The health, behavioral, and developmental disparities are not only due to the racial gap in SES but also diminishing returns of socioeconomic status indicators such as family income for racial minorities. Research should study contextual and structural factors that reduce Black families’ ability to mobilize their human capital and secure health outcomes in urban settings.

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Mental Rotation in American Children: Diminished Returns of Parental Education in Black Families

Pediatric Reports ◽

10.3390/pediatric12030028 ◽

2020 ◽

Vol 12 (3) ◽

pp. 130-141

Author(s):

Shervin Assari

Keyword(s):

Mental Rotation ◽

Social Stratification ◽

Parental Education ◽

Cross Sectional Study ◽

Efficiency Score ◽

Cross Sectional ◽

White Children ◽

Family Socioeconomic Status ◽

White Families ◽

American Children

Background: While parental education and family socioeconomic status (SES) are associated with an increase in children’s cognitive functioning, and less is known about racial variation in these effects. Minorities’ Diminished Returns (MDRs) suggest that, under racism and social stratification, family SES and particularly parental education show weaker effects on children’s tangible outcomes for marginalized, racialized, and minoritized families, particularly Blacks, compared to Whites. Aim: We conducted this study to compare the effect of parental education on children’s mental rotation abilities, as an important aspect of cognitive function, by race. Methods: This cross-sectional study included 11,135 9–10-year-old American children. Data came from baseline of the Adolescent Brain Cognitive Development (ABCD) study. The independent variable was parental education. The dependent variable, mental rotation, was measured by the Little Man Task. Ethnicity, gender, age, marital status, and household income were the covariates. Results: Parental education was positively associated with mental rotation. However, parental education showed a weaker association with mental rotation in Black than in White families. This was documented by a significant interaction between race and parental education on children’s efficiency score. Conclusion: Parental education shows a weaker correlation with mental rotation of Black rather than White children, which is probably because of racism, social stratification, and discrimination. This finding is in line with the MDRs phenomenon and suggests that marginalization and racism may interfere with the influences of parental assets and resources and Black American children’s development.

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Parental Education and Nucleus Accumbens Response to Reward Anticipation: Minorities’ Diminished Returns

Advances in Social Science and Culture ◽

10.22158/assc.v2n4p132 ◽

2020 ◽

Vol 2 (4) ◽

pp. p132

Author(s):

Shervin Assari

Keyword(s):

Nucleus Accumbens ◽

High Risk ◽

Risk Behaviors ◽

Parental Education ◽

High Risk Behaviors ◽

White Families ◽

Reward Anticipation ◽

American Children ◽

The Right ◽

Family Ses

Background. Considerable research has documented the effects of race and Socioeconomic Status (SES) on reward-seeking behaviors; however, less is known about the multiplicative effects of race and family SES on brain response to reward anticipation. Minorities’ Diminished Returns (MDRs) suggest that family SES would show weaker effects on brain development of children in non-White families than in White families. Objective. To test race by SES variation in Nucleus Accumbens (NAcc) response to reward anticipation (NAcc-RA) among American children. Methods. For this cross-sectional analysis, data came from the Adolescents Brain Cognitive Development (ABCD) study which included 6,419,9-10 year old children. The independent variable was parental education. The moderator was race. The primary outcome was the right NAcc-RA. Age, sex, ethnicity, household income, and family structure were the covariates. We used mixed-effect regression models that adjusted for the nested nature of the ABCD data. Results. While high parental education was associated with a higher amount of right NAcc-RA, this effect was stronger for White than non-White children. This finding was evident in the observed interactions between race and parental education on the right NAcc-RA. Discussion. For American children, NAcc-RA is not shaped by race or family SES, but by their intersection. As a result of the interaction between race and SES (diminished return of SES for non-Whites), middle-class racial minority children may remain susceptible to high-risk behaviors. Disparities in high-risk behaviors in children should not be reduced to economic disparities. Structural inequalities may reduce the return of SES resources for non-White families.

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Parental Education, Household Income, and Cortical Surface Area among 9–10 Years Old Children: Minorities’ Diminished Returns

Brain Sciences ◽

10.3390/brainsci10120956 ◽

2020 ◽

Vol 10 (12) ◽

pp. 956

Author(s):

Shervin Assari

Keyword(s):

Brain Development ◽

Surface Area ◽

Household Income ◽

Parental Education ◽

Cortical Surface ◽

Whole Brain ◽

White Children ◽

Cortical Surface Area ◽

American Children ◽

Parental Educational Attainment

Introduction: Although the effects of parental education and household income on children’s brain development are well established, less is known about possible variation in these effects across diverse racial and ethnic groups. According to the Minorities’ Diminished Returns (MDRs) phenomenon, due to structural racism, social stratification, and residential segregation, parental educational attainment and household income show weaker effects for non-White than White children. Purpose: Built on the MDRs framework and conceptualizing race as a social rather than a biological factor, this study explored racial and ethnic variation in the magnitude of the effects of parental education and household income on children’s whole-brain cortical surface area. Methods: For this cross-sectional study, we used baseline socioeconomic and structural magnetic resonance imaging (sMRI) data of the Adolescent Brain Cognitive Development (ABCD) study. Our analytical sample was 10,262 American children between ages 9 and 10. The independent variables were parental education and household income. The primary outcome was the children’s whole-brain cortical surface area. Age, sex, and family marital status were covariates. Race and ethnicity were the moderators. We used mixed-effects regression models for data analysis as participants were nested within families and study sites. Results: High parental education and household income were associated with larger children’s whole-brain cortical surface area. The effects of high parental education and high household income on children’s whole-brain cortical surface area were modified by race. Compared to White children, Black children showed a diminished return of high parental education on the whole-brain cortical surface area when compared to White children. Asian American children showed weaker effects of household income on the whole-brain cortical surface area when compared to White children. We could not find differential associations between parental education and household income with the whole-brain cortical surface area, when compared to White children, for non-Hispanic and Hispanic children. Conclusions: The effects of parental educational attainment and household income on children’s whole-brain cortical surface area are weaker in non-White than White families. Although parental education and income contribute to children’s brain development, these effects are unequal across racial groups.

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Race, Ethnicity, Family Socioeconomic Status, and Children’s Hippocampus Volume

Research in Health Science ◽

10.22158/rhs.v5n4p25 ◽

2020 ◽

Vol 5 (4) ◽

pp. p25

Author(s):

Shervin Assari

Keyword(s):

Socioeconomic Status ◽

Ethnic Group ◽

Parental Education ◽

Family Socioeconomic Status ◽

White Families ◽

Race Ethnicity ◽

American Children ◽

Using Data ◽

Hippocampus Volume ◽

Family Ses

Introduction: The hippocampus has a significant role in memory, learning, and cognition. Although hippocampal size is highly susceptible to family socioeconomic status (SES) and associated stress, very little is known on racial and ethnic group differences in the effects of SES indicators on hippocampus volume among American children. Purpose: This study explored the multiplicative effects of race, ethnicity, and family SES on hippocampus volume among American children. Methods: Using data from the Adolescent Brain Cognitive Development (ABCD), we analyzed the functional Magnetic Resonance Imaging (fMRI) data of 9390 9-10 years old children. The main outcome was hippocampus volume. The predictor was parental education. Subjective family SES was the independent variable. Age, sex, and marital status were the covariates. Racial and ethnic group membership were the moderators. To analyze the data, we used regression models. Results: High subjective family SES was associated with larger hippocampus volume. This effect was significantly larger for Whites than Black families. Conclusions: The effect of subjective family SES on children’s hippocampus volume is weaker in Black than White families.

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Diminished Association between Parental Education and Parahippocampal Cortical Thickness in Pre-Adolescents in the US

Studies in Social Science Research ◽

10.22158/sssr.v2n4p34 ◽

2021 ◽

Vol 2 (4) ◽

pp. p34

Author(s):

Mona Darvishi ◽

Mohammed Saqib ◽

Shervin Assari

Keyword(s):

Racial Differences ◽

Cortical Thickness ◽

Household Income ◽

Parental Education ◽

National Sample ◽

Cross Sectional Study ◽

Cross Sectional ◽

The Us ◽

American Children ◽

The Right

Introduction: Socioeconomic status (SES) indicators, such as parental education and household income, are associated with the thickness of various cortical areas. However, less is known about the parahippocampal region. Additionally, more research is required regarding how the correlation between SES indicators and cortical thickness differs among diverse racial groups. Purpose: This study uses a national sample of pre-adolescents ages 9 to 10 years old in the US and was performed with two aims in mind. First, to investigate the correlations between two SES indicators, namely parental education and household income, and parahippocampal cortical thickness. Second, to explore racial differences in these associations. Methods: In this cross-sectional study, we used data from the Adolescent Brain Cognitive Development (ABCD) study to analyze the Structural Magnetic Resonance Imaging (sMRI) data of 9,849 US pre-adolescents between the ages of 9 and 10 years old. The main outcomes were parahippocampal cortical thickness separately calculated for the right and the left hemispheres using sMRI. The independent variables were parental education and household income, which were both treated as nominal variables. Age, sex, ethnicity, and family structure were the covariates, and race was the moderator. Mixed-effects regression models were used for data analysis with and without interaction terms. Results: High income positively associated with right and left parahippocampal cortical thickness in the fully adjusted models. Race showed a statistically significant interaction with parental education on children’s parahippocampal cortical thickness, suggesting that the correlations between parental education with the right and left parahippocampal cortical thickness were significantly larger for White than Black and other/mixed race pre-adolescents. No interaction was found for household income and race. Conclusions: The association between parental education and pre-adolescents parahippocampal cortical thickness may be weaker in Black than in White American children. Consistent with the findings of Marginalization-related Diminished Returns (MDRs), parental education shows weaker links for some brain indicators, such as parahippocampal cortical thickness, in Black and other racial and minority children when compared to White children.

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Family Socioeconomic Position at Birth and School Bonding at Age 15; Blacks’ Diminished Returns

Behavioral Sciences ◽

10.3390/bs9030026 ◽

2019 ◽

Vol 9 (3) ◽

pp. 26 ◽

Cited By ~ 19

Author(s):

Shervin Assari

Keyword(s):

Racial Differences ◽

Socioeconomic Position ◽

Family Income ◽

Well Being ◽

Black Families ◽

School Bonding ◽

White Youth ◽

Prospective Longitudinal Study ◽

White Families ◽

Prospective Longitudinal

Life course epidemiological studies have documented the effects of family socioeconomic position (SEP) at birth on youth developmental processes and outcomes decades later. According to the minorities’ diminished returns (MDR) theory, however, family SEP at birth generates smaller returns for Black compared to White families. Using 15 years of follow up data of a national sample of American families, this study investigated racial differences in the effect of family income at birth on subsequent school bonding of the adolescent at age 15. The fragile families and child well-being study (FFCWS) is a 15-year prospective longitudinal study of 495 White and 1436 Black families from the birth of their child. Family SEP (poverty status) at birth was the independent variable. Youth school bonding at age 15 was the main outcome. Linear regressions were applied for data analysis, with race as the focal moderator. In the pooled sample, in addition to each race, higher family SEP at birth was associated with higher school bonding of the youth at age 15. Race altered the effects of family SEP at birth on youth school bonding at age 15, indicating smaller protective effects for Black compared to White youth. Race stratified regressions also showed the effect of family SEP at birth on age 15 school bonding for White youth, but not Black youth. Tangible outcomes that follow economic resources at birth are disproportionately smaller for Black families compared to those for White families. Merely equalizing SEP is not enough for the elimination of racial inequalities in youth outcomes. Policies should reduce societal and structural barriers that commonly cause diminished returns of SEP for Black families. Policy evaluations should aim for most effective policies that have the potential to equalize Blacks’ and Whites’ chances for gaining tangible developmental and health outcomes from identical SEP resources.

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