Teaching the underlying rules of figural matrices in a short video increases test scores

Abstract Scores of commonly administered intelligence tests such as figural matrices are important correlates of external criteria. However, evidence of improving intelligence test scores through practice or coaching has been reported. Moreover, information about intelligence tests is widely and easily accessible (e.g., online tutorial videos). An open research question is whether watching such a video increases figural matrices test scores and affects the correlation with other intelligence tests. In two experiments (experiment 1: N = 112 psychology students; experiment 2: N = 229 teacher-education students), students were randomly assigned to either an experimental group that watched a short video (