# of studies reporting psychometric properties: 2
MCID: not established for SCI
SEM: not established for SCI
MDC: not established for SCI
- Scores over 50 suggest depression. Scores over 69 indicating severe depression.
- No normative data or cut-points have been reported for the SCI population.
- Published data for the SCI population is available for comparison (see Interpretability section of the Study Details sheet).
Internal consistency of the Zung Depression scale is High (Cronbach’s a = 0.81).
(Tate et al. 1993)
Moderate to High
- Correlation of the Zung total score is High with the Brief Symptom Inventory – global severity index (Pearson’s r = 0.53) and the Brief Symptom Inventory – Depression scale (Pearson’s r = 0.52).
- Inter-correlations between the Medically-Based Emotional Distress Scale subscales and the Zung scale are Moderate to High (ranging from 0.31 to 0.72).
(Tate et al. 1993, Overholser et al. 1993)
No values were reported for the responsiveness of the Zung scale for the SCI population.
No values were reported for the presence of floor/ceiling effects in the Zung scale for the SCI population.
Dr. Vanessa Noonan, Matthew Querée
Date Last Updated
3 February 2021