The Student Learning Scales (SLS) were intended to supplement or replace existing college instructor performance scales, by focusing on the actions of learners and by providing students with an instrument for assessing their own learning reactions in a variety of instructional contexts. Factor analyses and validity studies were conducted to develop and refine the SLS. The factors indicated by the factor analytic studies--appropriate teaching method, liberal learning, social learning, analytical thinking and problem solving, motivation and relevancy, and writing--were examined in relation to students' majors: humanities, social science, natural science, business, and learning analysis. (Results are included, as well as various forms of the 94-item rating scale). (Author/GDC)