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Internal consistency (reliability) (H2)
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First, to determine the degree of inter-item correlation, we generated a correlation matrix including all 10 items. For this to yield a Cronbach’s α of .80 (indicating good internal consistency) an average inter-item correlation of .29 would be necessary [25, 32]. Second, we assessed item-scale correlations, values > .30 correlate very well with the overall scale [32, 33].
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