Introduction: A reliable tool to assess Clinical Instruction is essential to maximizing Physical Therapist student clinical education experiences. The purpose of this study was to analyze the reliability of the PTSE. Methods: Quasi-experimental design with test-retest. Subjects: 101 Students. Procedure: The PTSE survey sent, twice once to obtain scores which were reviewed with the CI and again for scores which were not reviewed with the CI. Statistical Analysis: Descriptive statistics were used for demographics variables; paired t-test to determine difference between first and second survey; an interclass correlation coefficient (ICC) test to determine reliability from first to second survey and frequencies and percentages for the 5 point Likert scale. Differences were considered significant if at the .05 probability. Results: 142 student surveys. For the student responses from the first to the second survey, there was a significant difference in 12 of the 29 PTSE questions, ranging from .001-.049. An ICC showed moderate to good reliability. Discussion: The significant difference found on the t-test suggests the possibility of unreliability however the ICC shows moderate- good reliability. Conclusion: Based on the ICC and the small difference in scores the statistical analysis suggests that the PTSE is a reliable tool for CI evaluation.