THIS DOCUMENT INCLUDES ABSTRACTS OF 350 EXPERIMENTS IN INSTRUCTIONAL TELEVISION AND INSTRUCTIONAL FILM SINCE 1950. EACH ABSTRACT DESCRIBES THE PROBLEM, SAMPLE, SUBJECT TAUGHT, KEY VARIABLES, AND CRITERION INSTRUMENTS. RELIABILITY AND VALIDITY DATA, AND STATISTICS, WHEN AVAILABLE, ARE ALSO GIVEN. THE INTRODUCTION REVIEWS RESEARCH TRENDS. AUTHOR AND SUBJECT INDEXES ARE ALSO INCLUDED. THIS DOCUMENT IS AVAILABLE FROM THE SUPERINTENDENT OF DOCUMENTS, U.S. GOVERNMENT PRINTING OFFICE, WASHINGTON, D.C., 20402, AS OE-34041, FOR $1.25.