The three-item patient-reported instrument for retrospective adherence in resource constrained settings: reliability, validity and potential utility.
Seth C KalichmanEllen BanasBruno ShkembiMoira KalichmanCatherine MathewsPublished in: Journal of behavioral medicine (2023)
The IRA demonstrated reliability, construct validity and criterion validity in a resource constrained setting, supporting use of the IRA in research and clinical care.