In addition to the use of grade point average and academic background to assess candidates for admission into professional graduate programs, many university programs today use structured interviews to further assess candidates' suitability. The Master of Occupational Therapy program at the University of Manitoba has in recent years adopted a standardized interview designed to capture specific psychometric characteristics of applicants considered relevant for scholarship in Occupational Therapy professional program. This study applied the Rasch Analysis Model to test the reliability and validity of the structured interview to determine whether the tool is invariant and fits the Rasch probabilistic model. A three-cohort interview data from 258 applicants were analyzed. The result indicates that the tool has high reliability (person separation index [PSI] = 0.8715), and was invariant across the participants. This Rasch analysis result supports the use of structured interview as an additional tool for students' admission.