COSMIN Review About Assessment Tools for Sexuality Knowledge in People with Intellectual Disability.

Despite the relevance of assessing the level of sexuality knowledge in people with intellectual disability, appropriate tools for measuring this domain are scarce. Our aim was to critically appraise, compare, and summarize the measurement quality and psychometric properties of all self-reported sexuality knowledge questionnaires for people with intellectual disability. To this end, a systematic search of the Scopus, Web of Science, PubMed, EMBASE, and MEDLINE databases was performed. This review was based on the COSMIN methodology for systematic reviews of patient-reported outcome measures. Eighteen studies were found that reported on the measurement properties of nine assessment tools. The psychometric properties of the instruments were generally indeterminate or not reported due to incomplete data, and the use of statistical methods not preferred according to the criteria of good psychometric measures. There was moderate quality evidence of the psychometric properties of the scales. The Detection of Sexual Abuse Risk Screening Scale and the Inventory of Sexual Knowledge of People with Intellectual Disability are instruments that have demonstrated potential for use, but their psychometric quality for non-Spanish populations should be assessed. In conclusion, future studies on property measurement instruments for the assessment of sexual knowledge are needed. Therefore, the instruments should be updated because most studies were performed nearly a decade ago.