The Classroom Systems Observation Scale: Development of an instrument to assess classrooms using a systems perspective

This study describes the development of the Classroom Systems Observation Scale (CSOS) (Fish & Dane, 1992) and reports initial reliability and validity data. The CSOS assesses preschool through sixth grade classroom functioning from a systems perspective using a theoretical framework based on the Circumplex Model of Marital and Family Systems (Olson, Russell & Sprenkle, 1989). The CSOS is theoretically derived, has acceptable interobserver agreement, fair to moderate stability, and is comprised of factors consistent with conceptual components. The design of the CSOS represents a theoretical shift by changing the focus of observation from the individual child to the classroom system. The CSOS can be used in research and holds promise for clinical applications.