Do children think of genetic inheritance as deterministic or probabilistic? In two novel tasks, children viewed the eye colors of animal parents and judged and selected possible phenotypes of offspring. Across three studies (N = 353, 162 girls, 172 boys, 2 non-binary; 17 did not report gender) with predominantly White U.S. participants collected…

Children are developing alongside interactive technologies that can move, talk, and act like agents, but it is unclear if children's beliefs about the agency of these household technologies are similar to their beliefs about advanced, humanoid robots used in lab research. This study investigated 4-11-year-old children's (N = 127, M[subscript age]…

Although actual experiences of upward social mobility are historically low, many adolescents and adults express a "belief" in social mobility (e.g., that social status can change). Although a belief in upward mobility (e.g., that status can improve) can be helpful for economically disadvantaged adolescents and adults, a belief in upward…

Scientists have long employed puppets in research with young children; this essay explores the validity of this practice. After considering what puppets are, their main types and history, I note the different ways puppets have been employed in research. One of these uses raises the issue of whether and when children apply their theory of mind to…

115, 6-9-year-olds (M age = 7.47 years) participated in a scripted event during which the child's mother or a stranger broke a forbidden puppet and requested secrecy. Then, children were either (1) primed for the goal of honesty (prime), (2) asked to promise to tell the truth (oath), or (3) given no instructions (control) before responding to…

Do children think of genetic inheritance as deterministic or probabilistic? In two novel tasks, children viewed the eye colors of animal parents and judged and selected possible phenotypes of offspring. Across three studies (N = 353, 162 girls, 172 boys, 2 non-binary; 17 did not report gender) with predominantly White U.S. participants collected…

Background: Children can internalise social and parental gender stereotypes and this may influence their perceived motor competence (PMC). This study aimed to examine the association between father and daughter gender-stereotyped attitudes/beliefs and girls' PMC. Methods: Girls (N = 68, M[subscript age]= 8.9 years, SD = 1.7) and their fathers were…

This research examined the effects of overhearing an adult praise an unseen child for not needing to work hard on an academic task. Five-year-old Han Chinese children (total N = 270 across three studies; 135 boys, collected 2020-2021) who heard this low effort praise tended to devalue effort relative to a baseline condition in which the overheard…

Striking weight biases emerge early in development, yet cognitive-developmental research has largely ignored weight as a social characteristic of interest. How do children conceive of weight? In particular, do children hold essentialist views of weight (i.e. do they view weight as natural, stable, inductively meaningful, and reflective of people's…

The purpose of this systematic review was to identify how the home learning environment (HLE) was measured in group design, early math intervention studies conducted in the home. Specifically, we evaluated the physical (e.g. frequency of activities) and affective (e.g. parents' beliefs, children's attitudes) aspects of the HLE. We included…

Behavioral research demonstrates a critical transition in preschooler's mental-state understanding (i.e., theory of mind; ToM), revealed most starkly in performance on tasks about a character's false belief (e.g., about an object's location). Questions remain regarding the neural and cognitive processes differentiating children who pass versus…

Causal reasoning is a fundamental cognitive ability that enables individuals to learn about the complex interactions in the world around them. However, the mechanisms that underpin causal reasoning are not well understood. For example, it remains unresolved whether children's causal inferences are best explained by Bayesian inference or…

The COVID-19 pandemic has forced children to reckon with the causal relations underlying disease transmission. What are children's theories of how COVID-19 is transmitted? And how do they understand the relation between COVID-19 susceptibility and the need for disease-mitigating behavior? We asked these questions in the context of children's…

This study describes how 3- to 8-year-olds' justifications for their reality status judgements about people on YouTube relates to their age and previous YouTube watching experience. Using a within-subjects design, children were asked about their beliefs regarding the reality status of a purported YouTube video and provided justifications for their…

Children's socioeconomic status (SES) is linked to disparate access to resources and affects social behaviors such as inclusion and resource allocations. Yet it is unclear whether children's essentialized view of SES (i.e., believing SES is immutable) or subjective social status (SSS) influences behavioral biases toward high- versus low-SES peers.…