The Munby system for coding classroom interaction is an observation system constructed to study the intellectual consequences of varying kinds of science teaching behaviors. The initial use of the system called for making judgments about small portions of teaching, arbitrarily determined from a transcript of the teaching in question. Recent work…

This revised manual for the General Aptitude Test Battery (GATB) discusses: (1) historical development; (2) item analysis; (3) factor analysis; (4) physical format; (5) general working population norms (ages 18-54); (6) intercorrelations of raw GATB test scores and of GATB aptitude scores; (7) development of norms for specific occupations (tables…