This paper describes a study conducted to compare the interaction of experience and specificity in a requirements inspection technique. Two versions of a requirements inspection technique, PBR, were generated. One version had a high level of specificity and the other had a low level of specify. These techniques were used by subjects of varying experience levels to determine if experience and specificity were related. The results of the study indicated very little difference among the treatment groups. As a result, we examined any assumptions that we made about the environment. In doing so, we uncovered some issues that must be addressed in future studies that focus on people. This paper provides a complete description of the results obtained and describes the assumptions that we made and their impact on the reliability of the results. (UMIACS-TR-2003-100)