Measuring Anxiety Symptoms – Psychometric Properties of the Dutch Version of the Lehrer–Woolfolk Anxiety Scale Questionnaire

<jats:p> Abstract: Introduction: The Lehrer–Woolfolk Anxiety Symptom Questionnaire (LWASQ) is a self-report questionnaire based on the tripartite model of Lang (1971) for measuring treatment progress. However, so far little is known about its psychometric qualities. Two studies were conducted to get more clarity on the factor structure and reliability of the LWASQ. Method: Factor structure and internal consistency of the LWASQ were assessed using a sample of 2,117 patients with anxiety disorders. Test–retest reliability was measured with a three-week interval, using a sample of 49 people... Mehr ...