Peer interaction can be challenging in autism spectrum disorder, but naturalistic peer-observation scales for preschoolers are scarce. This study examined psychometric qualities of the newly developed Autism Peer Interaction Observation Scale. We tested the Autism Peer Interaction Observation Scale to (a) characterize peer interactions of…

Proposed developmental steps for hopping over distance were tested to determine their comprehensiveness and accuracy. The proposed arm action component required modification, but the leg action was properly ordered. The pattern of sex differences was consistent with earlier research. The non-chosen leg was developmentally behind the chosen leg in…

Described is the development and validation of the Charlop-Atwell Scale of Motor Coordination, which is designed to measure some aspects of the gross motor coordination of children between the ages of 4 and 6 years. The test itself and the scoring ranges for boys and girls are appended. (Author/SJL)

This article describes the Learning Accomplishment Profile-Diagnostic Standardized Assessment, a standardized norm-referenced developmental assessment tool for children between the ages of 30 to 72 months. The test assesses fine motor skills, language skills, cognitive ability, and gross motor development. Its administration, standardization,…

The Lexington Development Scale was designed to be used by the teacher as an instrument for assessing developmentally handicapped children, as an aid in helping parents to better understand their child, as a basis for curriculum planning for the total class and especially for the individual child, as a means for evaluating the progress of the…