Poor children confront widespread environmental inequities. Compared with their economically advantaged counterparts, they are exposed to more family turmoil, violence, separation from their families, instability, and chaotic households. Poor children experience less social support, and their parents are less responsive and more authoritarian. Low-income children are read to relatively infrequently, watch more TV, and have less access to books and computers. Low-income parents are less involved in their children's school activities. The air and water poor children consume are more polluted. Their homes are more crowded, noisier, and of lower quality. Low-income neighborhoods are more dangerous, offer poorer municipal services, and suffer greater physical deterioration. Predominantly low-income schools and day care are inferior. The accumulation of multiple environmental risks rather than singular risk exposure may be an especially pathogenic aspect of childhood poverty.

Environment of childhood poverty

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The environment of childhood poverty.

Childhood multiple risk factor exposure exceeds the adverse developmental impacts of singular exposures. Multiple risk factor exposure may also explain why sociodemographic variables (e.g., poverty) can have adverse consequences. Most research on multiple risk factor exposure has relied upon cumulative risk (CR) as the measure of multiple risk. CR is constructed by dichotomizing each risk factor exposure (0 = no risk; 1 = risk) and then summing the dichotomous scores. Despite its widespread use in developmental psychology and elsewhere, CR has several shortcomings: Risk is designated arbitrarily; data on risk intensity are lost; and the index is additive, precluding the possibility of statistical interactions between risk factors. On the other hand, theoretically more compelling multiple risk metrics prove untenable because of low statistical power, extreme higher order interaction terms, low robustness, and collinearity among risk factors. CR multiple risk metrics are parsimonious, are statistically sensitive even with small samples, and make no assumptions about the relative strengths of multiple risk factors or their collinearity. CR also fits well with underlying theoretical models (e.g., Bronfenbrenner's, 1979, bioecological model; McEwen's, 1998, allostasis model of chronic stress; and Ellis, Figueredo, Brumbach, & Schlomer's, 2009, developmental evolutionary theory) concerning why multiple risk factor exposure is more harmful than singular risk exposure. We review the child CR literature, comparing CR to alternative multiple risk measurement models. We also discuss strengths and weaknesses of developmental CR research, offering analytic and theoretical suggestions to strengthen this growing area of scholarship. Finally, we highlight intervention and policy implications of CR and child development research and theory.

Cumulative risk and child development.

The one in five children growing up in poverty in America have elevated risk for socioemotional difficulties. One contributing factor to their elevated risk may be exposure to multiple physical and psychosocial stressors. This study demonstrated that 8- to 10-year-old, low-income, rural children (N = 287) confront a wider array of multiple physical (substandard housing, noise, crowding) and psychosocial (family turmoil, early childhood separation, community violence) stressors than do their middle-income counterparts. Prior research on self-reported distress among inner-city minority children is replicated and extended among low-income, rural White children with evidence of higher levels of self- and parent-reported psychological distress, greater difficulties in self-regulatory behavior (delayed gratification), and elevated psychophysiological stress (resting blood pressure, overnight neuroendocrine hormones). Preliminary mediational analyses with cross-sectional data suggest that cumulative stressor exposure may partially account for the well-documented, elevated risk of socioemotional difficulties accompanying poverty.

https://www.jstor.org/stable/pdfplus/3696282.pdf

The Environment of Poverty: Multiple Stressor Exposure, Psychophysiological Stress, and Socioemotional Adjustment

The early emergence and developmental implications of externalizing behavior problems in toddlers and preschoolers are discussed with an emphasis on which young children are truly at risk for continuing problems. The extant literature is reviewed with a focus on the stability of early externalizing behavior and the diverse pathways that young children, primarily boys, with early-emerging problems may follow. Findings from a number of studies, both epidemiological and high risk, suggest that the small subgroup of boys with multiple risk factors that include especially high levels of early hyperactivity and aggression, and high levels of negative parenting and family stress, are most likely to evidence continuing problems at school entry. Sociodemographic and neighborhood influences are also discussed, as are implications for future research and policy.

https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954579400003114

Early externalizing behavior problems: toddlers and preschoolers at risk for later maladjustment.

This longitudinal study examined the relation between family instability and the problem behaviors of children from economically disadvantaged families. Family instability was assessed when the children were ages 5 and 7 and included number of residence changes, changes of intimate caregiver relationships, and recent negative life events. The results showed direct concurrent relations between family instability and preschool children's externalizing behavior in the context of other family process variables, relations between subsequent family instability and 1st-grade children's internalizing behavior (i.e., with preschool behavior ratings controlled), and an effect for persistent instability across grade. Moderator effects were also found for child variables, including gender, temperamental adaptability, and prior externalizing scores.

Family Instability and the Problem Behaviors of Children From Economically Disadvantaged Families

This study explored the relations between additive and cumulative representations of contextual risk, caregiver emotionality, child adaptability, and teacher reports of the problem behaviors of 6- and 7-year-old children (N = 155) from economically disadvantaged families. The results showed relations between both risk representations and child problem scores and provided evidence that the relation for cumulative risk may be moderated by caregiver negative emotionality and caregiver positive emotionality and partially mediated by child adaptability. The results suggest the importance of exploring alternative representations of contextual risk and the conditions under which contextual risk influences child behavior.

Jen Kogos

Papers

Family Instability and the Problem Behaviors of Children From Economically Disadvantaged Families

Contextual Risk, Caregiver Emotionality, and the Problem Behaviors of Six- and Seven-Year-Old Children from Economically Disadvantaged Families.