The Physical Health Questionnaire (PHQ): Construct Validation of a Self-Report Scale of Somatic Symptoms

The authors report the results of 3 studies that were conducted to evaluate the psychometric properties of the Physical Health Questionnaire (PHQ), a brief self-report scale of somatic symptoms. In Study 1, exploratory factor analysis results revealed 4 empirically distinct dimensions of somatic symptoms: gastrointestinal problems, headaches, sleep disturbances, and respiratory illness. In Study 2, this structure was replicated using …