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Tool Name
Ecobehavioral Assessment Systems Software (EBASS) (for special populations)

Evaluation Type
Classroom Observations

All Subjects
Special Education specific

All Grades

Use of Evaluation


EBASS was developed by Charles Greenwood and various collaborators at the University of Kansas.

Product Description
EBASS is a computer-based observation program that supports the collection of data using three instruments: CISSAR (Code for Instructional Structure and Student Academic Response), MS–CISSAR (Mainstream Version–Code for Instructional Structure and Student Academic Response), and ESCAPE (Ecobehavioral System for the Complex Assessment of Preschool Environments). These three instruments record events using momentary time sampling. The EBASS software assists observers in following the sampling guidelines. The instruments were designed specifically to enable a student’s classroom behavior to be analyzed in traditional ways, using percentage occurrence and change over time as a function of intervention. They also were designed to yield descriptive information on the classroom situations (ecology and teacher) temporally related to students' behavior. Finally, they are specifically intended to enable estimation of the probability of students' behavior given specific classroom situations as defined by ecological and teacher events. The instruments in EBASS provide a means of examining how to represent classroom ecology and teacher and student behavior within a direct observation method with breadth and depth.

General Target Population Information
The program description on the Juniper Gardens Children's Project website notes that research using this protocol has been conducted on regular education and special education students in high-poverty and low-poverty locations.

Stage of Teacher Development
All Stages

Several research studies have been conducted using this protocol; however, it is possible to use this program for formative and summative teacher evaluations.

Research and Resources
Greenwood, C., Carta, J., & Dawson, H. (2000). Ecobehavioral Assessment Systems Software (EBASS): A system for observation in education settings. In T. Thompson, D. Felce, & F. J. Symons (Eds.), Behavioral observation: Technology and applications in developmental disabilities (pp. 229–251). Baltimore, MD: Paul H. Brookes Publishing.

Information on the cost of the observation system can be found online at

Contact Information
Juniper Gardens Children's Project
University of Kansas
650 Minnesota Avenue, 2nd Floor
Kansas City, KS 66101-2800
Phone: 913-321-3143
Fax: 913-371-8522

Support Available

The EBASS system comes with two disks, a tutorial disk for training and reliability, and a data collection disk. Training can be arranged by Harriett Dawson Bannister.

Harriett Dawson Bannister
Juniper Gardens Children's Project
650 Minnesota Ave., 2nd Floor
Kansas City, KS 66102
Phone: 913-321-3143, ext. 214
Fax: 913-371-8522
Office Hours: 8:30 a.m.–5:00 p.m., Monday–Friday