# Insomnia

3 results
Scales

Emotional State Questionnaire (EST-Q)

A comprehensive academic guide to the Emotional State Questionnaire (EST-Q), detailing its psychometric properties, subscales...

September 16, 2026 memjavad
Scales

Insomnia Severity Index (ISI)

The Insomnia Severity Index (ISI) is a gold-standard, 7-item psychometric instrument developed by Dr. Charles...

September 5, 2026 memjavad
Scales

Pittsburgh Sleep Quality Index (PSQI)

A comprehensive academic guide to the Pittsburgh Sleep Quality Index (PSQI), covering its psychometric properties,...

September 5, 2026 memjavad