This study demonstrated an aptitude-strategy interaction in linear syllogistic reasoning; specifically, that the efficiency of each of four alternative strategies for solving linear syllogisms would depend on subjects' verbal and spatial abilities. The four strategies, as well as research methods in aptitude-treatment interaction, are discussed.…

The viability of self-instructional strategy training was investigated in a study involving 22 learning disabled and 11 normal fifth and sixth graders. Training produced meaningful and lasting effects on composition skills and heightened the sense of self-efficacy of subjects. (TJH)