A national experiment reveals where a growth mindset improves achievement.

A global priority for the behavioural sciences is to develop cost-effective, scalable interventions that could improve the academic outcomes of adolescents at a population level, but no such interventions have so far been evaluated in a population-generalizable sample. Here we show that a short (less than one hour), online growth mindset intervention-which teaches that intellectual abilities can be developed-improved grades among lower-achieving students and increased overall enrolment to advanced mathematics courses in a nationally representative sample of students in secondary education in the United States. Notably, the study identified school contexts that sustained the effects of the growth mindset intervention: the intervention changed grades when peer norms aligned with the messages of the intervention. Confidence in the conclusions of this study comes from independent data collection and processing, pre-registration of analyses, and corroboration of results by a blinded Bayesian analysis.

Mindset × Context: Schools, Classrooms, and the Unequal Translation of Expectations into Math Achievement.

When do adolescents' dreams of promising journeys through high school translate into academic success? This monograph reports the results of a collaborative effort among sociologists and psychologists to systematically examine the role of schools and classrooms in disrupting or facilitating the link between adolescents' expectations for success in math and their subsequent progress in the early high school math curriculum. Our primary focus was on gendered patterns of socioeconomic inequality in math and how they are tethered to the school's peer culture and to students' perceptions of gender stereotyping in the classroom. To do this, this monograph advances Mindset × Context Theory. This orients research on educational equity to the reciprocal influence between students' psychological motivations and their school-based opportunities to enact those motivations. Mindset × Context Theory predicts that a student's mindset will be more strongly linked to developmental outcomes among groups of students who are at risk for poor outcomes, but only in a school or classroom context where there is sufficient need and support for the mindset. Our application of this theory centers on expectations for success in high school math as a foundational belief for students' math progress early in high school. We examine how this mindset varies across interpersonal and cultural dynamics in schools and classrooms. Following this perspective, we ask: 1. Which gender and socioeconomic identity groups showed the weakest or strongest links between expectations for success in math and progress through the math curriculum? 2. How did the school's peer culture shape the links between student expectations for success in math and math progress across gender and socioeconomic identity groups? 3. How did perceptions of classroom gender stereotyping shape the links between student expectations for success in math and math progress across gender and socioeconomic identity groups? We used nationally representative data from about 10,000 U.S. public school 9th graders in the National Study of Learning Mindsets (NSLM) collected in 2015-2016-the most recent, national, longitudinal study of adolescents' mindsets in U.S. public schools. The sample was representative with respect to a large number of observable characteristics, such as gender, race, ethnicity, English Language Learners (ELLs), free or reduced price lunch, poverty, food stamps, neighborhood income and labor market participation, and school curricular opportunities. This allowed for generalization to the U.S. public school population and for the systematic investigation of school- and classroom-level contextual factors. The NSLM's complete sampling of students within schools also allowed for a comparison of students from different gender and socioeconomic groups with the same expectations in the same educational contexts. To analyze these data, we used the Bayesian Causal Forest (BCF) algorithm, a best-in-class machine-learning method for discovering complex, replicable interaction effects. Chapter IV examined the interplay of expectations, gender, and socioeconomic status (SES; operationalized with maternal educational attainment). Adolescents' expectations for success in math were meaningful predictors of their early math progress, even when controlling for other psychological factors, prior achievement in math, and racial and ethnic identities. Boys from low-SES families were the most vulnerable identity group. They were over three times more likely to not make adequate progress in math from 9th to 10th grade relative to girls from high-SES families. Boys from low-SES families also benefited the most from their expectations for success in math. Overall, these results were consistent with Mindset × Context Theory's predictions. Chapters V and VI examined the moderating role of school-level and classroom-level factors in the patterns reported in Chapter IV. Expectations were least predictive of math progress in the highest-achieving schools and schools with the most academically oriented peer norms, that is, schools with the most formal and informal resources. School resources appeared to compensate for lower levels of expectations. Conversely, expectations most strongly predicted math progress in the low/medium-achieving schools with less academically oriented peers, especially for boys from low-SES families. This chapter aligns with aspects of Mindset × Context Theory. A context that was not already optimally supporting student success was where outcomes for vulnerable students depended the most on student expectations. Finally, perceptions of classroom stereotyping mattered. Perceptions of gender stereotyping predicted less progress in math, but expectations for success in math more strongly predicted progress in classrooms with high perceived stereotyping. Gender stereotyping interactions emerged for all sociodemographic groups except for boys from high-SES families. The findings across these three analytical chapters demonstrate the value of integrating psychological and sociological perspectives to capture multiple levels of schooling. It also drew on the contextual variability afforded by representative sampling and explored the interplay of lab-tested psychological processes (expectations) with field-developed levers of policy intervention (school contexts). This monograph also leverages developmental and ecological insights to identify which groups of students might profit from different efforts to improve educational equity, such as interventions to increase expectations for success in math, or school programs that improve the school or classroom cultures.

Unpacking the linkages between single parent households and early adolescent adjustment.

Living with an unmarried mother is consistently associated with adjustment issues in adolescence, but these associations can vary by both time and place. Following life course theory, this study applied inverse probability of treatment weighting techniques to data from the National Longitudinal Survey of Youth (1979) Children and Young Adults study (n = 5,597) to estimate various treatment effects of family structures through childhood and early adolescence on internalizing and externalizing dimensions of adjustment at age 14. Young people who lived with an unmarried (single or cohabiting) mother during early childhood and adolescence were more likely to drink and reported more depressive symptoms by age 14 than those with a married mother, with particularly strong associations between living with an unmarried mother during early adolescence and drinking. These associations, however, varied according to sociodemographic selection into family structures. They were strongest for youth who more closely resembled the average adolescent living with a married mother.

Teacher Mindsets Help Explain Where a Growth-Mindset Intervention Does and Doesn't Work.

A growth-mindset intervention teaches the belief that intellectual abilities can be developed. Where does the intervention work best? Prior research examined school-level moderators using data from the National Study of Learning Mindsets (NSLM), which delivered a short growth-mindset intervention during the first year of high school. In the present research, we used data from the NSLM to examine moderation by teachers' mindsets and answer a new question: Can students independently implement their growth mindsets in virtually any classroom culture, or must students' growth mindsets be supported by their teacher's own growth mindsets (i.e., the mindset-plus-supportive-context hypothesis)? The present analysis (9,167 student records matched with 223 math teachers) supported the latter hypothesis. This result stood up to potentially confounding teacher factors and to a conservative Bayesian analysis. Thus, sustaining growth-mindset effects may require contextual supports that allow the proffered beliefs to take root and flourish.

The Developmental Significance of Looks from Middle Childhood to Early Adolescence.

Physical appearance during the transition into adolescence matters for youths' socioemotional development. This study explored these implications by adding visual data to the NICHD Study of Early Child Care and Youth Development (n = 1,049) to test how others' ratings of youths' looks (1 = very unattractive to 5 = very attractive) at the beginning (grade 3) and end (grade 9) of this transition shaped their emotional well-being, popularity/likability, and dating/sexual behavior. Results revealed recency effects of grade 9 looks on popularity/likability and dating/sexual behaviors and a lingering amplification effect of grade 3 looks on popularity/likability at the start of high school. Few associations were evident for emotional well-being. Thus, physical appearance offers an important lens for studying adolescent development.

Contextualizing the Social and Educational Journeys of Adolescents within the Life Course.

What happens during adolescence emerges from early in life and sets the stage for later in life. This linking function of adolescence within the life course is grounded in social, psychological, and biological development and is fundamental to the intergenerational transmission of societal inequalities. This article explores this life course phenomenon by focusing on how the social ups and downs of secondary school shape adolescents' educational trajectories, translating their backgrounds into their futures through the interplay of their personal agency with the constraints imposed by the stratified institutions they navigate. Illustrative examples include gender differences in risky behavior, racialized experiences of school discipline, immigrant youths' family relations, LGBTQ students' school safety, STEM education, adverse childhood experiences, and mindset interventions.

Predictors and consequences of school mobility in middle childhood.

In this prospective longitudinal study (N = 1094, M age = 5.6 years to M age = 11.1 years), we examined family factors associated with school mobility and then asked if either a move during the previous year or cumulative moves across elementary school were related to child functioning. Family factors were not linked to a recent move or a single move, but changes in family income and household structure did predict higher odds of two or more moves in elementary school. There was no evidence that a recent move or a single move was related to children's academic or social functioning. Effects of two or more moves on child functioning were not significant after controlling for the number of analyses that were conducted. Taken together, school mobility during elementary school did not appear to be a pervasive risk although we were unable to study very high rates of school mobility because of very small sample sizes.

Correction to: New Destinations and the Early Childhood Education of Mexican-Origin Children.

In the original article, the authors neglected to include information in the Acknowledgements section about one additional NICHD grant that funded the study.

Death of family members as an overlooked source of racial disadvantage in the United States.

Long-standing racial differences in US life expectancy suggest that black Americans would be exposed to significantly more family member deaths than white Americans from childhood through adulthood, which, given the health risks posed by grief and bereavement, would add to the disadvantages that they face. We analyze nationally representative US data from the National Longitudinal Study of Youth (n = 7,617) and the Health and Retirement Study (n = 34,757) to estimate racial differences in exposure to the death of family members at different ages, beginning in childhood. Results indicate that blacks are significantly more likely than whites to have experienced the death of a mother, a father, and a sibling from childhood through midlife. From young adulthood through later life, blacks are also more likely than whites to have experienced the death of a child and of a spouse. These results reveal an underappreciated layer of racial inequality in the United States, one that could contribute to the intergenerational transmission of health disadvantage. By calling attention to this heightened vulnerability of black Americans, our findings underscore the need to address the potential impact of more frequent and earlier exposure to family member deaths in the process of cumulative disadvantage.

Preliminary Findings of the Links Between Gender Role Attitudes and Sexual Behaviors in Mexican American Early Adolescent Boys.

This study explored the relations between Latino gender role attitudes (traditional machismo attitudes and caballerismo attitudes) and sexual behaviors among 242 Mexican American early adolescent boys in the southwest United States. Specifically, a multiple mediator model estimated the association between gender role attitudes and sexual activity through a mediational pathway connecting substance use, sexual motives, and peer influence. Results from analyzing this structural equation model indicated that traditional machismo attitudes were not associated with sexual behaviors. Caballerismo gender role attitudes, however, were indirectly linked with reduced sexual motives and substance via peer influence. This study underscores the importance of social context, behavior, and psychological motivations in explaining differences in sexual motives and substance use among young Mexican American adolescent boys who hold different kinds of beliefs about their gender.

Crowd Sourcing: Do Peer Crowd Prototypes Match Reality?

During the transition into high school, adolescents sort large sets of unfamiliar peers into prototypical peer crowds thought to share similar values, behaviors, and interests (e.g., Jocks). Often, such sorting is based solely on appearance. This study investigates the accuracy of this sorting process in relation to actual characteristics using video and survey data from a longitudinal sample of U.S. youths who attended high school in the mid- to late-2000s. To simulate this sorting process, we asked same-birth-cohort strangers to view short videos of youths at age 15 and to classify those strangers into likely crowd membership. We then compared the classifications they made to how adolescents characterized themselves at that same time point. Results show that peer crowd classification predicts aspects of unknown peers' mental health, academic achievement, extracurricular involvement, social status, and risk-taking behaviors.

Community Contexts and Utilization of Early Childhood Care and Education among Mexican-Origin Children.

Children of Mexican origin are under-enrolled in early childhood education programs relative to Black and White children, which is problematic given the potential benefits of early childhood education. o better understand this under-enrollment in ways that can inform efforts to change it in the future, this study examined how utilization of early care and education programs varied among Mexican-origin families according to the community contexts where they lived. Integrating data on Mexican-origin children in the Early Childhood Longitudinal Study- Birth Cohort (n = 1,100) with community data from the U.S. Census Bureau, logistic regressions revealed that the odds of enrollment in early care and education programs among Mexican-origin children increased as the supply of childcare centers in their counties increased. Holding childcare center supply constant, their enrollment also increased as the percent of co-ethnic Latinos/as in the county increased, especially for children from the least acculturated Mexican-origin families. Overall, these results suggest that ethnic enclaves might link Mexican-origin families to early childhood care and education programs for their children and that this role might be most important for families least likely to be connected to U.S. institutions.

What Do Parents Want From Preschool? Perspectives of Low-Income Latino/a Immigrant Families.

With a qualitative approach drawing from four focus groups, this study explored what aspects of preschool are valued most by 30 low-income Latino/a immigrant parents with children enrolled in a state-funded preschool program in Texas. Beyond the push and pull factors of necessity, convenience, and supply, parents reported valuing the responsiveness of schools to families' needs and concerns, the provision of a safe and developmentally appropriate environment, the role of preschool in both care and education, the incorporation of parents within the school, and the school's capacity for developing parents' human and navigational capital. Even though parents saw great value in preschool preparing their children for school and helping themselves as parents, there was also fear and mistrust in neighborhood schools that was rooted in discrimination and long-term educational inequality.

Race/ethnicity, human capital, and the selection of young children into early childhood education.

Mexican-origin families face complex ethnic and immigration-based barriers to enrollment in early childhood education programs. As such, reducing barriers to enrollment for this population requires a better understanding of how Mexican-origin families work with, against, or around both general and group-specific constraints on educational opportunities. Using the Early Childhood Longitudinal Study-Birth Cohort, this study tailored broad social theory to the experience of Mexican-origin families to examine associations between human capital considerations and early childhood education enrollment within this population. Results supported the hypothesis that human capital considerations would be associated with early childhood care and education and provide limited evidence for the expectation that this link would be stronger for Mexican-origin families.

New Destinations and the Early Childhood Education of Mexican-Origin Children.

This study examined differences in exposure to early childhood education among Mexican-origin children across Latino/a destinations. Early childhood educational enrollment patterns, which are highly sensitive to community resources and foundational components of long-term educational inequalities, can offer a valuable window into how destinations may be shaping incorporation among Mexican-origin families. Integrating data from the Early Childhood Longitudinal Study-Birth Cohort with county-level data from the decennial census, multilevel logistic regression models revealed that Mexican-origin, black, and white children had lower odds of enrollment in early childhood education programs if they lived in new Latino/a destinations versus established destinations. The negative association between new destinations and early childhood education enrollment persisted despite controls for household selectivity, state and local early childhood education contexts, Latino/a educational attainment, Latino-white residential segregation, and immigration enforcement agreements. Within the Mexican-origin subgroup, the enrollment gap between new and established destinations was widest among the least-acculturated families, as measured by parental nativity, duration of residence, citizenship status, and English proficiency. These findings highlight how both place and acculturation stratify outcomes within the large and growing Mexican-origin subset of the Latino/a population.

Using polytomous latent class analysis to compare patterns of substance use and co-occurring health-risk behaviors between students in alternative and mainstream high schools.

INTRODUCTION: Alternative high school (AHS) students, an understudied and underserved population, experience educational, social, and health disparities relative to students in mainstream high schools. Disparities in single types of substance use are particularly high, yet no known studies have compared patterns of substance use or relationships between these patterns and other health-risk behaviors between AHS and mainstream high schools. METHODS: Using data from the Texas Alternative School Health Survey (n = 515; mean age 17.1 years, 49% male, 59% Hispanic, 23% White, 15% Black) and the Texas Youth Risk Behavior Survey (n = 2,113; mean age 16 years, 47% male, 64% Hispanic, 22% White, 7% Black), we used latent class analyses to compare patterns of substance use in AHSs and mainstream high schools. We used latent class regression to examine relationships between patterns of substance use and involvement in other health-risk behaviors in each school setting. RESULTS: Students in AHSs and mainstream high schools had similar patterns of substance use, and youth in higher risk categories engaged in higher levels of other health-risk behaviors. A substantially greater proportion of AHS students, however, fell into the moderate and high use categories, in support of continuing disparities for AHS students. CONCLUSIONS: Additional support is needed in AHSs to address the prevalence of high-risk patterns of substance use and associated health-risk behaviors. For example, ongoing public health surveillance is needed in AHSs, just as is done in mainstream high schools, to monitor trends in substance use and impact of policies and interventions.

Contemporary College Students' Reflections of their High School Peer Crowds.

High school peer crowds are fundamental components of adolescent development with influences on short-and long-term life trajectories. This study provides the perspectives of contemporary college students regarding their recent high school social landscapes, contributing to current research and theory on the social contexts of high school. This study also highlights the experiences of college-bound students who represent a growing segment of the adolescent population. 61 undergraduates attending universities in two states participated in 10 focus groups to reflect on their experiences with high school peer crowds during the late 2010s. Similar to seminal research on peer crowds, we examined crowds and individuals along several focal domains: popularity, extracurricular involvement, academic orientation, fringe media, illicit risk taking, and race-ethnicity. We find that names and characteristics of crowds reflect the current demographic and cultural moment (i.e., growing importance of having a college education, racial-ethnic diversity) and identify peer crowds that appear to be particularly salient for college-bound youth. Overall, this study illuminates how the retrospective accounts of college-bound students offer insight into high school social hierarchies during a time of rapid social change.

High School Dropout in Proximal Context: The Triggering Role of Stressful Life Events.

Adolescents who drop out of high school experience enduring negative consequences across many domains. Yet, the circumstances triggering their departure are poorly understood. This study examined the precipitating role of recent psychosocial stressors by comparing three groups of Canadian high school students (52% boys; Mage  = 16.3 years; N = 545): recent dropouts, matched at-risk students who remain in school, and average students. Results indicate that in comparison with the two other groups, dropouts were over three times more likely to have experienced recent acute stressors rated as severe by independent coders. These stressors occurred across a variety of domains. Considering the circumstances in which youth decide to drop out has implications for future research and for policy and practice.

Family Instability and Exposure to Violence in the Early Life Course.

Family instability has been linked with a host of outcomes across the early life course. This study extends this literature by connecting instability with violence in the community by examining the associations among family structure, family structure change, and secondary exposure to violence during adolescence across diverse segments of the population. Using longitudinal data from the Project on Human Development in Chicago Neighborhoods study, we found that living with a single parent and experiencing family structure changes were associated with secondary exposure to violence. Multiple group models suggest that partner change translated into more exposure for boys than girls. Findings also suggest that family instability may lead to more secondary exposure to violence for African American youth.

Relationship Conflict, Work Conditions, and the Health of Mothers With Young Children.

Past research has shown that marital conflict is associated with poorer health among women and that new children come with declines in relationship quality and increased stress. The primary aim of this study was to explore how these two patterns converge-and what might buffer the risks of both to women's health. We do so by examining the potential for paid work, more often thought of as a stressor for women managing family roles and relationships, to help women weather tensions at home while raising young children. Drawing on the work-family facilitation and research substitution perspectives, structural equation modeling analyzed integrated data from the Early Childhood Longitudinal Study-Birth Cohort and the Occupational Information Network database. The models revealed evidence that work characteristics can be protective. Specifically, the negative association between relationship conflict and mothers' health was weaker when mothers or their partners worked in jobs with positive social-psychological conditions, such as feelings of sociability and support. These findings highlight the potential for work-family facilitation among new mothers.