SECONDARY SCHOOL SCIENCE EDUCATION RESEARCH STUDIES CONDUCTED DURING 1963-65 ARE REVIEWED AND COMPARED WITH THOSE REVIEWED DURING 1961-63. TITLES OF 195 RESEARCH REPORTS WERE OBTAINED FROM PERIODICALS, SERIAL AND NONSERIAL BULLETINS, AND INDEXES. ABSTRACTS OF 125 DOCUMENTS WERE OBTAINED AND REVIEWED BY A COMMITTEE. THE STUDIES WERE CLASSIFIED AS (1) SURVEY AND STATUS, (2) ANALYTICAL AND SURVEY, (3) EXPERIMENTAL, OR (4) CURRICULUM. DURING THE 2-YEAR PERIOD THE NUMBER OF SURVEY AND STATUS AND CURRICULUM STUDIES INCREASED WHILE THE NUMBER OF ANALYTICAL SURVEY AND EXPERIMENTAL STUDIES DECREASED. REVIEWS INCLUDE A SHORT DESCRIPTION OF THE STUDY AND RESULTS OBTAINED. A BIBLIOGRAPHY OF THE STUDIES INCLUDED IN THE REVIEW IS PRESENTED. (AG)