Matthew Sunderland

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The Penn State Worry Questionnaire (PSWQ) is a widely used measure of the worry characteristic of generalised anxiety disorder (GAD). The 7-item Generalized Anxiety Disorder Scale (GAD-7) is a new(More)
OBJECTIVE To provide population-based Kessler Psychological Distress Scale (K10) normative data for older adults and cut scores for screening. PARTICIPANTS Adults age ≥65 years who participated in(More)
Shortened forms of the Social Interaction Anxiety Scale (SIAS) and the Social Phobia Scale (SPS) were developed using nonparametric item response theory methods. Using data from socially phobic(More)