Erbe D et al [ 28 ] compared the interformat reliability of the paper-and-pen version with a computerized version of the PHQ-9 in a clinical sample and obtained comparable internal consistency between the computer ( α =.88) and paper versions ( α =.89), and highly significant correlations between the formats ( r =0.92).
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Analyzing Trends in Suicidal Thoughts Among Patients With Psychosis in India: Exploratory Secondary Analysis of Smartphone Ecological Momentary Assessment Data.
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