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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
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Child and Adolescent Psychiatry and Mental Health

ISSN: 1753-2000