Family free-play interaction: setting and methods.
D002648:Child; D002652:Child Behavior; D002675:Child, Preschool; D006801:Humans; D008297:Male; D008425:Maternal Behavior; D001523:Mental Disorders / Q000523:psychology*; D010287:Parent-Child Relations; D010332:Paternal Behavior; D010988:Play and Playthings; D012984:Software; D014743:Videotape Recording