The open-ended questions are more informative because they allow customers to elaborate why they responded as they did on multiple-choice questions. References National Public Research: Telephone ...

Questionnaires may help assess global functional outcomes after traumatic brain injury and may provide significant practical advantages vs. interviews, according to results of a cohort study ...

The Symptom Impact Questionnaire, an updated version of the Fibromyalgia Impact Questionnaire, may be more effective than the Polysymptomatic Distress Scale to evaluate the symptom severity ...