Validation of the Insomnia Severity Index as an outcome measure for insomnia research.
Interpreting score differences in the Insomnia Severity Index: using health-related outcomes to define the minimally important difference
Measures of Sleep in Rheumatologic Diseases: Sleep Quality PatientāReported Outcomes in Rheumatologic Diseases
Reliability, factor analysis and internal consistency calculation of the Insomnia Severity Index (ISI) in French and in English among Lebanese adolescents
https://pubmed.ncbi.nlm.nih.gov/29260018/Validation study of the Italian version of the Insomnia Severity Index (ISI)
https://pubmed.ncbi.nlm.nih.gov/27234459/Preliminary validation of the insomnia severity index in Danish outpatients with a medical condition
https://pubmed.ncbi.nlm.nih.gov/32124114/