MACLENVAN AND REID ABSTRACTED THE EXPERIMENTAL LITERATURE PERTAINING TO INSTRUCTIONAL FILM RESEARCH SINCE 1950. HISTORICAL AND DESCRIPTIVE STUDIES, SURVEYS, SURVEYS OF RESEARCH, AND OTHER NONEXPERIMENTAL REPORTS ARE OMITTED. EACH ABSTRACT INCLUDES THE NUMBER AND DESCRIPTION OF SUBJECTS, CRITERION INSTRUMENTS, RELIABILITY AND VALIDITY DATA, AND STATISTICS USED (WHEN GIVEN). ALL FINISHED ABSTRACTS (EXCEPT DISSERTATIONS) WERE MAILED TO THEIR AUTHORS, WHEN THEY COULD BE LOCATED, FOR COMMENTS BEFORE THE FINAL TYPING. VOLUME ONE INCLUDES AN INTRODUCTORY SECTION BY LESLIE P. GREENHILL, WHO DISCUSSES THE TRENDS OF INSTRUCTIONAL FILM RESEARCH. (SEE ED 003 806 FOR VOLUME TWO) (JC)