This article in the Journal of Geoscience Education provides information about a study that used a Likert-scale instrument to determine the effectiveness of science courses for non-majors. Results from 991 students permitted a statistical analysis of this instrument's validity and reliability. Examples from two courses, one laboratory-based and the other grounded in collaborative learning, are provided to demonstrate the utility of these types of scales in assessing both prior knowledge and course outcomes.
Full Text of the article is available online.