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ABSTRACT IntroductionIndividuals' math value beliefs are theorized to influence who persists in STEM. However, the existing findings on gender differences in adolescents' math value beliefs are inconsistent. The goal of this study was to use three existing datasets to help clarify when gender differences emerge for high school adolescents and for whom (i.e., adolescents across historical time, grade level, and race/ethnicity). Specifically, we examined the extent to which gender differences in adolescents' math value beliefs (i.e., interest, utility, and attainment) replicated (1) across three datasets spanning the 1990s to 2010s, (2) from 9th–12th grade, and (3) within each of the four largest U.S. racial/ethnic groups (i.e., Asian, Black, Latine, and White adolescents). MethodsWe tested these aims with three existing longitudinal U.S. datasets: the California Achievement Motivation Project (CAMP) (n = 8855), the Childhood and Beyond Study (CAB) (n = 582), and the High School Longitudinal Study (HSLS) (n = 21,000). Students were in high school (9th–12th grade) and half were girls (49%–53%). All three datasets included measures with the same or similar math value belief items, making conceptual replication possible. Results and ConclusionsOverall, we did not find strong evidence for meaningful gender differences in adolescents' math value beliefs overall. We did find meaningful gender differences in the oldest data set (CAB). When examined within each racial/ethnic group, we found no evidence of gender differences in math value beliefs among Black or Latine adolescents, but some differences among Asian and White adolescents. The findings align with the gender similarities hypothesis, suggesting adolescent girls and boys had similar math value beliefs. 

Abstract IntroductionParents' science support and adolescents' motivational beliefs are associated with adolescents' expectations for their future occupations; however, these associations have been mostly investigated among White, middle‐class samples. Framed by situated expectancy‐value theory, the current study investigated: (1) the associations between parents' science support in 9th grade and Latine adolescents' science intrinsic value, utility value, and STEM career expectations in 11th grade, and (2) whether these indicators and the relations among them differed by adolescents' gender and parents' education. MethodsStudy participants included Latine adolescents (n = 3060;M_age = 14.4 years old; 49% female) in the United States from the High School Longitudinal Study of 2009. ResultsAnalyses revealed a significant, positive association between parents' science support and Latine adolescents' science utility value. Additionally, there was a significant, positive association between parents' science support and Latinas' science intrinsic value, but not for Latinos' science intrinsic value. Latine adolescents' science utility value, but not their science intrinsic value, predicted their concurrent STEM career expectations. Though there were no significant mean level differences in adolescents' science utility value or parents' science support based on adolescents' gender, the measure of adolescents' science intrinsic value varied across girls and boys. Finally, adolescents whose parents had a college degree received greater science support from parents compared to adolescents whose parents had less education than a college degree. ConclusionFindings suggest parents' science support and adolescents' intrinsic and utility values have potential associations with Latine adolescents' STEM career expectations near the end of high school. 

The present study investigated the longitudinal direct and indirect relations between mothers’ and fathers’ math ability self-concept, their child-specific math performance expectations and encouragement of math and science-related activities at home, and girls’ and boys’ math ability self-concept. Structural equation models were performed with longitudinal data from three waves of the Childhood and Beyond Study (CAB). The final sample consisted of 517 children and their mothers and fathers. The majority of children attended 2nd (26.1%), 3rd (25.5%) or 5th (40.4%) grade at first measurement point. Our results suggest that mothers and fathers with higher math ability self-concepts had higher expectations of their sons and encouraged their sons more, but not their daughters. Fathers’ math ability self-concept was indirectly related to the self-concept of their sons and this association was mediated by performance expectations. Furthermore, both boys and girls profited from their fathers’ expectations and girls benefitted from their fathers’ encouragement of math and science-related activities at home. In contrast, we found no effects from mothers’ beliefs and behaviors on child’s math ability self-concept. The findings underscore the relevance of fathers’ educational participation in the development of the math self-concept of ability of their children. 

Though adults tend to endorse the stereotype that boys are better than girls in math, children tend to favor their own gender or be gender egalitarian. When do individuals start endorsing the traditional stereotype that boys are better? Using two longitudinal U.S. datasets that span 1993 to 2011, we examined three questions: (1) What are the developmental changes in adolescents’ gender stereotypes about math abilities from early to late adolescence? (2) Do the developmental changes vary based on gender and race/ethnicity? (3) Are adolescents’ stereotypes related to their math motivational beliefs? Finally, (4) do these patterns replicate across two datasets that vary in historical time? Adolescents in grades 8/9 and 11 were asked whether girls or boys are better at math (n’s = 1186 and 23,340, 49–53% girls, 30–54% White, 13–60% Black, 1–22% Latinx, and 2% to 4% Asian). Early adolescents were more likely to be gender egalitarian or favor their own gender. By late adolescence, adolescents’ stereotypes typically shifted towards the traditional stereotype that boys are better. In terms of race/ethnicity, White and Asian adolescents significantly favored boys, whereas Black and Latinx adolescents were more likely to endorse gender egalitarian beliefs. Adolescents’ stereotypes were significantly related to their expectancy beliefs, negatively for girls and positively for boys.