AN EXPERIMENT TO DETERMINE EFFECTIVENESS OF VISUAL (VI) AND VERBAL (VE) PROGRAMED PRESENTATIONS ALSO VARIED RESPONSE MODE (ACTIVE VERSUS PASSIVE) AND ORDER OF PRESENTATION OF VI AND VE VERSIONS OF A SCIENCE LESSON FOR 200 GRADE 8 STUDENTS, TAUGHT VIA CLOSED CIRCUIT TELEVISION, THE FACTORIAL DESIGN REQUIRED EXPOSURE TO ONE LESSON VERSION, IMMEDIATE POST TEST, A BRIEF BREAK, AND EXPOSURE TO EITHER THE SAME OR THE ALTERNATE LESSON VERSION, ALSO FOLLOWED BY AN IMMEDIATE POST TEST. ANALYSIS OF GAIN SCORES BASED ON PRE-, IMMEDIATE POST-, AND DELAYED ACHIEVEMENT TESTS (WITH BOTH VI AND VE ITEMS) SHOWED SIGNIFICANT GAINS FOR--ACTIVE RESPONSE TO THE VI-VE ORDER, TYPE OF TEST ITEM AND THE CORRESPONDING LESSON VERSION, AND LESSONS VIEWED IN THE VI-VE ORDER. (LH)