RESEARCH STUDIES CONCERNED WITH THE APPROPRIATENESS AND EFFECTIVE UTILIZATION OF BIOLOGICAL SCIENCE CURRICULUM STUDY (BSCS) MATERIALS ARE DESCRIBED IN THIS NEWSLETTER. BSCS TESTS WERE ANALYZED AND RELATED TO OTHER TESTING INSTRUMENTS USED IN CONNECTION WITH THE BSCS PROGRAMS. DATA COLLECTED FOR THE ESTABLISHMENT OF TEST NORMS WERE ALSO USED IN A CURRICULUM EVALUATION STUDY WHICH COMPARED STUDENT ACHIEVEMENT (1) BETWEEN SEXES, (2) ON ALTERNATE TEST FORMS, AND (3) ON TWO READING TESTS. FINDINGS OF THE TEST STANDARDIZATION AND CURRICULUM EVALUATION STUDY INDICATED THAT (1) ALL TESTS WERE APPROPRIATE TO THE ABILITY LEVELS OF THE GROUPS, (2) MALES GENERALLY HAD HIGHER ABILITY AND ACHIEVEMENT TEST MEANS THAN FEMALES, (3) DIFFERENCES BETWEEN RAW MEAN SCORES ON ALTERNATE TEST FORMS WERE SMALL, (4) THERE WERE CONSISTENT DIFFERENCES IN ABILITY AND ACHIEVEMENT BETWEEN THE GROUPS USING THE THREE BSCS VERSIONS, AND (5) READING TESTS WERE HIGHLY RELATED TO ACADEMIC ABILITY AND ACHIEVEMENT TESTS. A REPORT OF AN ANALYSIS OF TEACHER STYLES AND VARIATION IN TEACHING CONCEPTS IS INCLUDED ALSO. FINDINGS OF THE TEACHER-STUDENT INTERACTION STUDY REVEALED (1) SIGNIFICANT DIFFERENCES IN THE VARIETY AND LEVELS OF TOPIC PRESENTATION, (2) DOMINATION OF DISCUSSIONS BY THE TEACHERS, (3) GREATER CLASS PARTICIPATION BY MALE STUDENTS, AND (4) A POSITIVE RELATIONSHIP BETWEEN CLASS PARTICIPATION AND STUDENT PERFORMANCE. A BIBLIOGRAPHY OF RESEARCH REPORTS CONCERNING THE BSCS LABORATORY BLOCKS AND ABSTRACTS OF RECENT RESEARCH AND DEVELOPMENT PROJECTS INVOLVING BSCS MATERIALS ARE INCLUDED. THIS DOCUMENT IS AVAILABLE AS NEWSLETTER NO. 30 AT NO COST FROM THE BIOLOGICAL SCIENCES CURRICULUM STUDY, P.O. BOX 930, UNIVERSITY OF COLORADO, BOULDER 80302. (AG)