Observational methods are increasingly being used in classrooms to evaluate the quality of teaching. Operational procedures for observing teachers are somewhat arbitrary in existing measures and vary across different instruments. To study the effect of different observation procedures on score reliability and validity, we conducted an experimental…

Changes, like single scores, are demonstrated to be valid and reliable and potentially predictable by independent variables. Change and growth measures determined from individual examinees' test scores indicated excellent predictive value. (Author/PN)

Reports on the development of a 12-item Likert-type measure of collective efficacy in schools designed to assess the extent to which a faculty believes in its conjoint capacity to influence student learning positively. A total of 452 teachers in 47 schools completed a 21-item scale later refined to 12 items. Discusses internal consistency and…