The study of infant gaze has long been a key tool for understanding the developing mind. However, labor-intensive data collection and processing limit the speed at which this understanding can be advanced. Here, we demonstrate an asynchronous workflow for conducting violation-of-expectation (VoE) experiments, which is fully "hands-off"…

The heterogeneity in the developmental trajectories of math motivational beliefs (i.e., expectancies for success and subjective task value beliefs) was examined among Asian and Latinx male and female students from Southern California across Grades 8 through 10 (n = 2,710; 50% female; 85% Latinx; 15% Asian; M[subscript age] = 13.77). By conducting…

Children develop expectations of caregivers' support-giving during early-life interactions. The present study examined whether caregivers' responsiveness would influence young children's expectations of caregivers' support-giving behavior and willingness under different situational stress levels. We manipulated the caregivers' responsiveness and…

Australian adolescents living in regional communities are significantly more likely to perform worse at school, relative to those in metropolitan communities. These disparities are partially due to the development of lower educational expectations among regional adolescents. In the current study, we tested whether the differences in educational…

Expectations about the future direct effort in goal-oriented action and may influence a range of life course outcomes, including educational attainment. Here we investigate whether such expectations are implicated in the dynamics underlying the persistence of educational advantage across family generations, and whether such dynamics have changed…

Secrets play a powerful role in human social relationships. Here, we examine the developmental trajectory of 3- to 10-year-old children's (N = 630) expectations about (a) how relationships impact whether people will keep secrets, and (b) how relationships are impacted when a confidee keeps versus tells a confider's secret. Sophisticated…

People frequently need to cooperate despite having strong self-serving motives. In the current study, pairs of 5- and 7-year-olds (N = 160) faced a one-shot coordination problem: To benefit, children had to choose the same of 3 reward divisions. They could not communicate or see each other and thus had to accurately predict each other's choices to…

We examined the influence of prior expectations on 4- to 10-year-olds' and adults' preferences and emotions following an undesirable outcome (N = 205; 49% female, 51% male; 6% Asian, 1% Black, 13% Hispanic/Latino [non-White], 57% White, 18% multiracial, and 5% another race/ethnicity; 75% with a college-educated parent). Participants attempted to…

Adolescents are tasked with navigating competing priorities, including whether to marry, have children, pursue a job/career, go to college, and contribute to society. The developmental task of building expectations for the future is especially complex for Cambodian adolescents living within a society that strongly prioritizes family obligations…

This study investigated the role of children's gender stereotypes and peer playmate experiences in shaping their desire to play with peers who hold counterstereotypical preferences (e.g., a boy who likes dolls or a girl who likes trucks). Children (N = 95; 46 girls, 49 boys; 67% White, 18% Black, 8% Latinx, 4% Asian, 3% other; median household…

Although children frequently engage in creative activities (in which they make foods and objects by hand), the development and scope of children's thinking about handmade items is largely unexplored. In the present studies, we examined whether 4- to 12-year-old children at a local children's museum (54% girls, 46% boys; 51% White, 11% Asian/Asian…

The current study examines how race-related stress, physiological and psychological anticipation of racism, relates to low-risk and high-risk activism orientations for Black adolescent boys and emerging adult men (N = 286). We investigate whether patterns of racial identity and age moderate those relationships. We found that physiological and…

Guided by paternal investment theory (PIT), the current research examines the effects of fathers on daughters' expectations for men in adulthood, and the role of these expectations in mediating women's short-term (casual or uncommitted) sexual behavior. Using a genetically informed differential sibling-exposure design (N = 223 sister pairs from…

Unraveling factors that influence parenting is of great importance, since parents play an important role in their children's development. In this study we focused on parental prenatal expectations, parents' gender and child's distress to limitations as possible influences on parental behavior and observed the longitudinal associations between…

Behavioral research has shown that 12- but not 9-month-olds imitate an unusual and inefficient action (turning on a lamp with one's forehead) more when the model's hands are free. Rational-imitation accounts suggest that infants evaluate actions based on the rationality principle, that is, they expect people to choose efficient means to achieve a…