Ability of the Bristol Impact of Hypermobility questionnaire to discriminate between people with and without Joint Hypermobility Syndrome: a known‐group validity study

Introduction A number of psychometric properties of the Bristol Impact of Hypermobility (BIoH) questionnaire have previously been demonstrated, including strong concurrent validity and test–retest reliability. This study aimed to identify whether it can discriminate between those with and without Joint Hypermobility Syndrome (JHS). Methods The wording of a small number of BIoH questionnaire items was adapted to create a generic version that...