Measuring hand dexterity in people with Parkinson’s disease: Reliability of pegboard tests

Abstract

Importance: Knowledge regarding the reliability of pegboard tests when used to measure dexterity in people with Parkinson’s disease (PD) is currently limited. Objective: To examine the test–retest and interrater reliability of the 9-Hole Peg Test (9HPT) and Purdue Pegboard Test (PPT) in people with PD. Design: Cross-sectional observational study. For test–retest reliability, tests were completed on 2 days, 1 wk apart, in the “on” phase and “end-of-dose” period of participants’ medication cycle. For interrater reliability, occupational therapists and physical therapists rated prerecorded pegboard test performance of participants with PD. Setting: Test–retest reliability was determined in part..