With its long tradition, research on misconceptions helps to understand how concepts are learned and how learning in the disciplines can be supported. Up to now, research on misconceptions has focused on natural sciences, while research on misconceptions in behavioral sciences is scarce, not to say absent. In this study an attempt was made to reveal upper secondary school students' misconceptions on doing research in behavioral sciences. The starting point for the study were research proposals of upper secondary school students. As part of a larger study, students were asked to write a research proposal in maximum two pages. A two-steps approach was adopted in the analysis of these research proposals. First, using a codebook containing both deductive and inductive codes, two-pagers were analyzed in order to identify 'errors'. In a second step, an interpretative analysis aimed at inferring potential misconceptions underlying these errors. The study can be considered as a starting point for research on misconceptions in behavioral sciences which is currently missing in the field.