Penn Interactive Peer Play Scale (PIPPS) interactive play scores for

Pretend play and social play: The concurrent validity of the Child-Initiated Pretend Play Assessment.

Frontiers The Relationship Between Russian Kindergarteners' Play and Executive Functions: Validating the Play Observed Behaviors Scale

The Validity of the Penn Interactive Peer Play Scale with Urban, Low-Income Kindergarten Children: School Psychology Review: Vol 32, No 1

Evaluating the quality of peer interactions in children and adolescents with autism with the Penn Interactive Peer Play Scale (PIPPS), Molecular Autism

Preschool Approaches to Learning and Their Relationship to Other Relevant Classroom Competencies for Low-Income Children.

Pre-school peer play: The beginnings of social competence

PDF) Assessment of preschool play interaction behaviors in young low-income children: Penn Interactive Peer Play Scale

Play observation scale: Fill out & sign online

Preschool Peer Interactions and Readiness to Learn : Relationships