To develop the Symptom Questionnaire for Visual Dysfunctions (SQVD) and to perform a psychometric analysis using Rasch method to obtain an instrument which allows to detect the presence and frequency ...

To develop a successful business continuity plan, your organization must first understand which processes and systems are most vital. The purpose of a Business Impact Assessment (BIA) is to shine the ...

The Hyperphagia Questionnaire for Clinical Trials (HQ-CT) is an observer-reported outcome measure that has been widely used in interventional studies to assess changes in hyperphagic behaviors in ...

Background: The brief Patient Health Questionnaire (PHQ-9) is commonly used to screen for depression with 10 often recommended as the cut-off score. We summarized the psychometric properties of the ...

Writing an effective questionnaire is not a task for novices. At the very least, it requires an understanding of four basic issues: Considering the differences between a questionnaire that respondents ...