Background: Although insomnia is a prevalent complaint with significant morbidity, it often
remains unrecognized and untreated. Brief and valid instruments are needed both for …

Background: Insomnia is a prevalent health complaint that is often difficult to evaluate
reliably. There is an important need for brief and valid assessment tools to assist …

Study Objectives: The objective was to psychometrically evaluate the Insomnia Symptom
Questionnaire (ISQ), a self-report instrument designed to establish a clinically relevant case …

Background: Although insomnia is a prevalent complaint with significant consequences on
quality of life, health, and health care utilization, it often remains undiagnosed and untreated …

Objective Describe the development and psychometric validation of a brief scale (the Sleep
Condition Indicator (SCI)) to evaluate insomnia disorder in everyday clinical practice. Design …

Self-report measures continue to provide key information in the evaluation and treatment of
insomnia. While knowledge development about insomnia continues to require multi-trait …

Although the Insomnia Severity Index (ISI) is already administered online, this frequently
used instrument has not been validated for Web delivery. This study compares online and …

OBJECTIVE: To examine the psychometric properties of the Spanish version of the Insomnia
Severity Index (ISI) and to determine its factor structure with confirmatory factor analysis …

Abstract Objective The Sleep Condition Indicator (SCI) and Insomnia Severity Index (ISI) are
commonly used instruments to assess insomnia. We evaluated their psychometric …

Objective: To estimate the minimally important difference (MID) for the Insomnia Severity
Index (ISI) by examining the association of score differences of the ISI with health-related …