Effects of an extracurricular science intervention on elementary school children's epistemic beliefs: A randomized controlled trial.

BACKGROUND: Further developing students' thinking about knowledge and knowing in science (epistemic beliefs) is considered a normative goal of science education in many countries around the world, even for elementary-school-aged children. AIMS: The goal of the present study was to introduce and evaluate a new intervention in science education aimed at developing children's epistemic beliefs, epistemic curiosity, and investigative interests. The intervention included an inquiry-based learning approach as well as reflections on epistemic issues because these methods are currently seen as most promising for fostering students' epistemic beliefs. SAMPLE: Data were collected from 65 elementary school children in Grades 3 and 4 (58.46% boys, age: M = 8.73, SD = 0.60) who participated in a voluntary extracurricular STEM enrichment programme in south-west Germany. METHODS: We investigated the effectiveness of the intervention by applying a randomized block design with a treated control group and repeated measures. The effectiveness of the intervention was analysed via multiple linear regression analyses. RESULTS: The results indicated that the children assigned to the intervention developed more sophisticated epistemic beliefs and a higher level of epistemic curiosity than the children assigned to the control condition. No intervention effects were found on investigative interests. CONCLUSIONS: The results provide initial evidence for the effectiveness of the intervention and demonstrate that it is possible to improve epistemic beliefs among elementary school children in Grades 3 and 4. The study provides a starting point for understanding how young children develop epistemic beliefs.

Gender Stereotypes in a Children's Television Program: Effects on Girls' and Boys' Stereotype Endorsement, Math Performance, Motivational Dispositions, and Attitudes.

Television programs are a central part of children's everyday lives. These programs often transmit stereotypes about gender roles such as "math is for boys and not for girls." So far, however, it is unclear whether stereotypes that are embedded in television programs affect girls' and boys' performance, motivational dispositions, or attitudes. On the basis of research on expectancy-value theory and stereotype threat, we conducted a randomized study with a total of 335 fifth-grade students to address this question. As the experimental material, we used a television program that had originally been produced for a national TV channel. The program was designed to show children that math could be interesting and fun. In the experimental condition, the program included a gender stereotyped segment in which two girls who were frustrated with math copied their math homework from a male classmate. In the control condition, participants watched an equally long, neutral summary of the first part of the video. We investigated effects on boys' and girls' stereotype endorsement, math performance, and different motivational constructs to gain insights into differential effects. On the basis of prior research, we expected negative effects of watching the stereotypes on girls' performance, motivational dispositions, and attitudes. Effects on the same outcomes for boys as well as children's stereotype endorsement were explored as open questions. We pre-registered our research predictions and analyses before conducting the experiment. Our results provide partial support for short-term effects of gender stereotypes embedded in television programs: Watching the stereotypes embedded in the video increased boys' and girls' stereotype endorsement. Boys reported a higher sense of belonging but lower utility value after watching the video with the stereotypes. Boys' other outcome variables were not affected, and there were also no effects on girl's performance, motivational dispositions, or attitudes. Results offer initial insights into how even short segments involving gender stereotypes in television shows can influence girls' and boys' stereotype endorsement and how such stereotypes may constitute one factor that contributes to gender differences in the STEM fields.