title: Observing and recording young handicapped children's behavior: a comparison among observational methodologies.
mesh_terms: D002547:Cerebral Palsy / Q000523:psychology / Q000534:rehabilitation*; D002675:Child, Preschool; D006233:Persons with Disabilities / Q000523:psychology*; D006801:Humans; D014743:Videotape Recording / Q000379:methods*