We used factor analysis and ANOVAs to examine differences in students’ confidence to
perform specific skill sets depending on lab type. The three factors we extracted using factor
analysis were: (1) confidence in explaining and writing about biological ideas (factor 1); (2)
confidence in writing and critiquing a lab report (factor 2); and (3) confidence in using a
scientific approach to solve problems, including using analytical skills to conduct
experiments and general confidence for success in the course (factor 3) (Appendix 3).
Following factor analysis, we used ANOVAs to compare changes in confidence levels in each
factor between students in inquiry and traditional labs. During Fall 2006, only one factor
differed significantly between labs—students’ confidence in explaining and writing about
biological ideas. Students in the traditional labs reported gaining greater self confidence in