Detecting intersensory redundancy guides cognitive, social, and language development. Yet, researchers lack fine-grained, individual difference measures needed for studying how early intersensory skills lead to later outcomes. The intersensory processing efficiency protocol (IPEP) addresses this need. Across a number of brief trials, participants…

Evaluated developmental trends in social perception by examining accuracy and consistency using a novel nonverbal trait-inference task at four age levels (5-6, 7-8, 9-11, and 19-22 years) in male subjects. This general paradigm may prove useful in future investigations of social perceptual development, particularly when consistency as well as…

Examined the performance of kindergartners from middle- and low-income families on arithmetic calculations presented in a nonverbal format and in three verbal formats. Children from middle-income families performed better than those from low-income families on verbal calculation tasks but not on the nonverbal task. (BC)