AbstractThe present study on the use of concept cartoons for assessment purposes aimed to present exemplary applications about developing a concept cartoon test, planning for a scoring key and the analysis process. For this purpose, a concept cartoon test was developed including six concept cartoon questions about photosynthesis and respiration in plants. This test was applied to 192 science and technology teacher candidates in the 2009-2010 academic years. The data obtained from the study were analyzed using a scoring key developed by the researchers. Moreover, the study attempted to explain how the scoring key is used through examples about the analysis process and scoring criteria. The study results suggest that the scoring key developed by the researchers can be used in the assessment process for concept cartoons.