Jeremy Sawyer recounts that, after Lev S. Vygotsky's death, Jean Piaget conceded the Russian psychologist correctly understood the social origins, functions, and developmental trajectory of children's egocentric speech (now called private speech) but dismissed this work as irrelevant to children's egocentrism or nondifferentiation of perspectives.…

This paper compares four selected social-emotional learning (SEL) curricula that have empirical support for preschool students (Preschools PATHS, Incredible Years, Al's Pals, and Preschool RULER). First, meta-analytic studies of SEL programs in schools and research on emotional intelligence (EI) of preschool children are reviewed as a background…

Although "hindsight bias" (the "I knew it all along" phenomenon) has been documented in adults, its development has not been investigated. This is despite the fact that hindsight bias errors closely resemble the errors children make on theory of mind (ToM) tasks. Two main goals of the present work were to (a) create a battery of hindsight tasks…

This study compares perspectives about benefits and risks of inclusion of 237 parents of children with and without disabilities and 118 providers in the same community-based reverse inclusion preschool program, using the same measures. Confirmatory factor analyses revealed a two factor structure, risks and benefits, based on scale scores from the…