The susceptibility to faking on the Tennessee Self Concept Scale was examined among college students. Additionally, groups of respondents, instructed to respond in a "random" fashion to pre-determined numbers of items in the TSCS, were subjected to a plausibility analysis of their test response vectors using the Rasch measurement model. Respondents included in the study totalled 352 and were students enrolled in education courses in a southern state university. Results of the investigation provided evidence of the proneness of the instrument to deception under certain situations. Moreover, statistical indices useful in the detection of aberrant data records for individual cases were provided. (Author/BMW)