The concepts of depression, anxiety, and neuroticism in questionnaires

Abstract
In this study, the relations among depression, anxiety, and neuroticism measured by self‐report questionnaires were investigated. Subjects were 207 psychiatric patients. High correlations were found among self‐report scales purporting to measure depression, anxiety, and neuroticism. Results of a content analysis showed considerable overlap among these scales. A division of items into six content categories did not result in lower correlations compared to the original scales.
Funding Information
  • Netherlands Foundation for the Advancement of Pure Research

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