Lightman, Alan and Philip Sadler

Teacher Predictions versus Actual Student Gains
Physics Teacher

v31 n3 p162-67 Mar 1993

Presents a study where astronomy teachers (n=66) try to predict student (n=330) outcomes on astronomy and related topics pre- and posttest. Suggested findings include a course in astronomy did not result in an overall knowledge gain, teachers fared well at predicting prior student knowledge, and teachers vastly overestimated student gain in knowledge during the course.