Measurement Property Summary
# of studies reporting psychometric properties: 2
Interpretability
- Each of the four scales are scored from 0 – 100, where lower scores indicate a better quality of life (i.e. no limitations, fears, constraints, or negative feelings) and higher scores indicate a poorer quality of life.
- Data is only provided from one study, so no normative data exists for the SCI population.
- Reference scores for different gender, age and type of lesion are available from the Qualiveen manual on 400 individuals with SCI (see the Interpretability section of the Study Details page).
MCID: not established in SCI
SEM: not established in SCI
MDC: not established in SCI
Reliability
- Internal consistency is High for the total Qualiveen scale (Cronbach’s a = 0.80) as well as for all the Qualiveen subscales (Cronbach’s a = 0.81-0.85).
- Test-retest reliability is High for the 4 Qualiveen subscales (ICC = 0.85-0.92).
(Costa et al. 2001)
Validity
- As expected, correlations of Qualiveen subscales to overall Qualiveen are positive and:
- Moderate to High for Qualiveen-Limitations (Pearson’s r = 0.52-0.65)
- Moderate to High for Qualiveen-Constraints (Pearson’s r = 0.43-0.66)
- Moderate to High for Qualiveen-Fears (Pearson’s r = 0.39-0.60)
- Moderate to High for Qualiveen-Feelings (Pearson’s r = 0.50-0.77).
- Correlations between items in each domain and non-corresponding domains are Low to High for Qualiveen-Limitations (Pearson’s r = 0.29-0.64), and Low to Moderate for Qualiveen-Constraints (Pearson’s r = 0.18-0.59), Qualiveen-Fears (Pearson’s r = 0.12-0.40) and Qualiveen-Feelings (Pearson’s r = 0.28-0.57).
(Costa et al. 2001)
Responsiveness
No values were reported for the responsiveness of the Qualiveen scale for the SCI population at this time.
Floor/Ceiling Effect
Floor and ceiling effects were minimal for the Qualiveen scale.
(Costa et al. 2001)
Reviewers
Dr. Ben Mortenson, Jeff Tan, John Zhu, Jeremy Mak
Date Last Updated
16 March 2017
