Measurement Property Summary
Number of studies reporting psychometric properties: 4
Interpretability
- Higher scores indicate greater independence in key ADLs.
- No cut-points or normative data for the SCI population have been established
- Published data for the SCI population is available for comparison (see the Interpretability section of the Research Summary sheet).
- MCID: not established in SCI population
- SEM: not established in SCI population
- MDC: not established in SCI population
Reliability – High
Number of studies reporting reliability data: 1
High internal consistency: α = 0.89
(Marino & Goin 1999; n=95; 85 males, 10 females; tetraplegia; mean age (SD): 32.1 (13.2) years; non-ambulatory @ 6 months)
Validity – Moderate to High
Number of studies reporting validity data: 3
- High correlation with Quadriplegia Index of Function (QIF): r = 0.987 (p = 0.987)
- High correlation with ASIA Upper Extremity Motor Score (UEMS): ρ = 0.824
(Marino & Goin 1999: N = 95 (85 male), tetraplegia; mean age (SD): 32.1 (13.2); non-ambulatory at 6 months)
- Moderate correlation with health state related to upper-extremity impairment of participants: r = 0.313 (p = 0.03)
(Snoek et al. 2005: N = 47 tetraplegics (38M, 9F); mean age (SD): 42 (13); mean duration of injury (SD): 11 (9); 44% AIS A, 31% AIS B, 9% AIS C, 16% AIS D)
Responsiveness
Number of studies reporting responsiveness data: 1
There is a significant difference in QIF-SF scores across the 3 measurement times (start of rehab, 3 months after start of rehab, and discharge) for groups C3-C6 and C7-T1.
(Marino & Goin 1999, Spooren et al. 2006)
Floor/Ceiling Effect
No values were reported for the presence of floor/ceiling effects in the QIF-SF for the SCI population.
Reviewers
Dr. Ben Mortenson, Dr. Carlos L. Cano-Herrera
Date Last Updated
December 31, 2024