Reliability of the Client-Centeredness of Goal Setting (C–COGS) Scale in Acquired Brain Injury Rehabilitation

OBJECTIVE: To examine the internal reliability and test-retest reliability of the Client-Centeredness of Goal Setting (C-COGS) scale. METHOD: The C-COGS scale was administered to 42 participants with acquired brain injury after completion of multidisciplinary goal planning. Internal reliability of scale items was examined using item-partial total correlations and Cronbach's α coefficient. The scale was readministered within a 1-mo period to a subsample of 12 participants to examine test-retest reliability by calculating exact and close percentage agreement for each item. RESULTS: After examination of item-partial total correlations, test items were revised. The revised items demonstrated stronger internal consistency than the original items. Preliminary evaluation of test-retest reliability was fair, with an average exact percent agreement across all test items of 67%. CONCLUSION: Findings support the preliminary reliability of the C-COGS scale as a tool to evaluate and promote client-centered goal planning in brain injury rehabilitation.