“…Again, these differences are more quantitative than qualitative and are not predicted to produce differential forgetting. In fact, many instructional strategy studies found no differences among treatments in level of original learning or retention (e.g., Beane, 1962;Flowers, 1987;Robin & Graham, 1974;Shearer, 1963;Yasutake, 1974). In studies where treatments did produce higher levels of original learning that carried over to the retention exam, there were usually no interactions (e.g., oral versus written testing, Balcerzak, 1975; active versus passive responding to television instruction, Brashear, 1974;programmed instruction plus outlining, Furukawa, 1977;study-for-test versus study-to-learn instructions, Halpin & Halpin, 1982; overt versus covert responding, Karis, 1970;audiovisual versus written presentation, Meckler & Vogler, 1983).…”