Functional Test of the Hemiparetic Upper Extremity: A Rasch Analysis With Theoretical Implications.

The sample had mostly mild to moderate upper extremity impairment, so the results may not apply to people outside this impairment range. The FTHUE was not designed to be used as an outcome measure in the original trial, and all 17 items were attempted even after a failed item, so the analysis may not match standard test administration. Thirty-three participants scored the maximum, so the test did not show their actual ability. Including these maximum scores reduced the test's ability to separate people, with person separation 1.60, precision 2.46 distinct ability groups, and person reliability 0.72. One item, Shirt tuck, fit poorly, and two items, Hand to lap and Associated reaction, could not be fit-tested because all participants scored the maximum on them. The paper reports secondary analysis of existing trial data, and the authors state that this limits how broadly the findings apply.

The authors certified that no party with a direct interest in the results had or would confer a benefit on them or their associated organizations. The article lists NIH extramural research support.

Do not read a perfect FTHUE score as proof that arm movement is normal. Thirty-three people received the maximum score of 17 points, but therapist comments about these scores described atypical movement strategies in 86% of comments.