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Reliability of Assessing Psychomotor Tasks in Physical Therapy Curricula

ABSTRACT: Because student performance of psychomotor tasks is used to determine student grades and ability to perform as a professional, it is the instructor's ethical and educational duty to ensure that the measurement tool is reliable. A reliable tool will help to identify students who have not mastered the material so that they may be provided with additional training and practice before graduation. A 17‐item score sheet for assessing a sterile‐technique hand‐washing procedure was developed to explore the reliability of scoring this psychomotor task. After the tool was found to be a valid measure of the task, three nursing instructors were trained to use the instrument. Sixty‐eight female physical therapy students were videotaped performing the task; then the instructors evaluated their performances using the score sheet. Results indicated only moderate intrarater (r=.69) and fair interrater (r=.55) reliabilities on videotaped scoring of eight subjects before raters were given instruction on using the score sheet. After rater instruction and feedback on the use of the instrument, the statistics improved to good interrater (r=.90) and good intrarater (r=.94) reliabilities. It is recommended that educators develop checklist instruments to assess clinical skills, provided that reliability is determined and raters are trained.