A pilot study was conducted to determine effective methods for testing students' learning processes. The theoretical framework within which learning processes were investigated is based on the B-P-E paradigm. This states that "Behavior (B) is a function of the Person (P) and the Environment (E)". After reviewing research done in related areas, the research project attempted to determine the instructional strategies (E) that are best for pupils having different cognitive styles and strategies (P) in the achievement of different objectives (B). Subjects were eighth grade students. Students' conceptual levels (cognitive complexity and maturity) were measured by means of PCM (Paragraph Completion Method). Their cognitive styles were measured by means of GEFT (Group Embedded Figures Test), which required them to find and trace the outlines of progressively complex geometric forms. Both the PCM and the GEFT were found to be generally reliable test instruments. A discussion is offered of the value of and problems with these tests in accurately assessing the learning processes of students. Appendices include references and tabular presentations of the test results. (JD)