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‡Three item scale.
†10 item scale.
This 16 item scale contains two dimensions.
† Center for Epidemiologic Studies Depression (20 item) scale.
Chrombach alpha for the 15 item scale was 0.75.
All thresholds were correctly ordered for the nine item scale.
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Cronbach's alpha for the 4-item scale was α = 0.89.
Exploratory factor analysis revealed a three-factor, 17-item scale.
The former dimension was measured with 5-item scale and the later was measured with 6-item scale.
The former dimension was measured using 7-item scale and the later was measured using 6-item scale.
R. Eisinga et al: The reliability of a two-item scale: Pearson, Cronbach, or Spearman-Brown?
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