This prospective study validated the psychometric properties of the ASES patient self-report section in 63 patients with shoulder dysfunction undergoing physical therapy. It answers whether the ASES can be trusted to track individual patients and detect meaningful clinical change. Key outputs include the MCID, MDC, and SEM — the three numbers clinicians need to interpret any ASES score in practice.
The ASES was published in 1994 without any psychometric validation — clinicians were using it to track patients and report outcomes without knowing whether changes in the score reflected true clinical change or measurement noise.
This paper gives you three numbers to apply every time you use the ASES. A single score has a 90% confidence interval of ±11 points (the SEM). A change of 6.4 points crosses the MCID. The patient perceives it as meaningful. A change of 9.4 points (90% CI 15.5) crosses the MDC. You can be statistically confident the change is real.
When a patient's ASES improves 8 points, tell them: that change is real to them (MCID crossed) and probably a true change (approaching MDC), but not yet statistically certain. When they improve 20 points, both thresholds are cleared.
If you want to track purely functional limitation without the influence of pain, use the function subscale alone. Its MCID is 3.4 points, a lower bar that may detect early functional gains before total score changes.
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This prospective study validated the psychometric properties of the ASES patient self-report section in 63 patients with shoulder dysfunction undergoing physical therapy. It answers whether the ASES can be trusted to track individual patients and detect meaningful clinical change. Key outputs include the MCID, MDC, and SEM — the three numbers clinicians need to interpret any ASES score in practice.
The ASES was published in 1994 without any psychometric validation — clinicians were using it to track patients and report outcomes without knowing whether changes in the score reflected true clinical change or measurement noise.
This paper gives you three numbers to apply every time you use the ASES. A single score has a 90% confidence interval of ±11 points (the SEM). A change of 6.4 points crosses the MCID. The patient perceives it as meaningful. A change of 9.4 points (90% CI 15.5) crosses the MDC. You can be statistically confident the change is real.
When a patient's ASES improves 8 points, tell them: that change is real to them (MCID crossed) and probably a true change (approaching MDC), but not yet statistically certain. When they improve 20 points, both thresholds are cleared.
If you want to track purely functional limitation without the influence of pain, use the function subscale alone. Its MCID is 3.4 points, a lower bar that may detect early functional gains before total score changes.