Describes an aptitude treatment interaction (ATI) hypothesis used to investigate relationships among aptitudes and science instructional treatments in terms of student performance. It is proposed that ATI research work in science education will systematically yield reliable generalizations about how to adapt instruction to individuals with…

Describes a heuristic model that facilitates the conceptualization of linguistic-imaginal processes and forms the basis for a method of relating learner aptitudes to specific instructional stimuli in science education. (MLH)

Investigates a method to predict best and least suited students for the ISCS instructional approach. Aptitude-treatment interactions associated with ISCS instruction and a set of aptitude, attitude, and skill factors were utilized to make and verify predictions on two dependent variables--achievement and success. (Author/GA)

Examines the individual and cumulative effects on achievement of providing students with objectives, sample test items, and a mastery strategy that included diagnostic testing and remedial instruction. Also investigates the effects of mastery learning on achievement of students with different aptitudes for learning. (Author/GA)

Examines relationships between factors affecting high school students' (n=142) ability to acquire meaningful understanding of specific biological concepts. Assessment using mental modeling techniques showed a significant correlation between students' meaningful learning orientation and their understanding of a topic. Suggests that perhaps much…