Skip to main content

Table 5 Internal consistency reliability of the five CDI subscales in terms of item-to-scale correlations (Pearson’s r) and Cronbach’s alpha coefficient

From: Prevalence of depressive symptoms among schoolchildren in Cyprus: a cross-sectional descriptive correlational study

CDI subscales Cronbach’s alpha Item-to-scale correlation within each subscale (Pearson’s r) Subscale-to-scale correlation (Pearson’s r)
Depressive mood 0.64 0.58–0.66* (0.52–0.61)* 0.84* (0.68*)
Inter-personal difficulties 0.32 0.17–0.33* (0.13–0.29)* 0.50* (0.36*)
Ineffectiveness 0.54 0.43–0.50* (0.44–0.46)* 0.64* (0.47*)
Anhedonia 0.64 0.59–0.64* (0.53–0.60)* 0.84* (0.64*)
Negative self-esteem 0.62 0.48–0.62* (0.45–0.5)* 0.78* (0.63*)
  1. The values in the parenthesis regard uncorrected values (items excluded from subscales/subscales excluded from the CDI scale)
  2. * p < 0.0001