The Insomnia Severity Index (ISI) is a self-report questionnaire used to measure the severity of insomnia symptoms in individuals. It consists of seven items that assess different aspects of insomnia, such as sleep onset, sleep maintenance, early morning awakening, and interference with daily functioning.
Harmony is an AI tool which uses Large Language Models to automatically match items from different questionnaires, even across different languages. You can try Harmony here: https://harmonydata.ac.uk/app. Harmony is also available as a Python and R package.
You may also be interested in Harmony Meta, our new discovery engine that helps you search through vast catalogues of study metadata to identify the variables you need for your research.
