biostudies-literatureHall JNational Institute for Health Research (NIHR)e060287https://www.ebi.ac.uk/biostudies/studies/S-EPMC9328097biostudies-literatureUnknown12(7)<h4>Objectives</h4>To evaluate the psychometric performance, including predictive validity, of a UK version of the Desire to Avoid Pregnancy (DAP) scale.<h4>Design</h4>Prospective cohort study for psychometric evaluation.<h4>Setting</h4>UK.<h4>Participants</h4>Women in the UK aged 15 years to menopause, who were not pregnant at the time of recruitment in October 2018, were eligible. 994 women completed the baseline survey and 90.2% of women eligible for the 12-month survey participated.<h4>Primary and secondary outcome measures</h4>The DAP scale was assessed according to key measurement properties of validity (construct (structural and hypothesis testing) and criterion (predictive)), reliability (internal consistency using Cronbach's alpha and test-retest using intraclass correlation coeffBMJ openEvaluation of the Desire to Avoid Pregnancy Scale in the UK: a psychometric analysis including predictive validity.PMC9328097PDF-2017-10-021Hall JBarrett GRocca CfalseEvaluation of the Desire to Avoid Pregnancy Scale in the UK: a psychometric analysis including predictive validity.<h4>Objectives</h4>To evaluate the psychometric performance, including predictive validity, of a UK version of the Desire to Avoid Pregnancy (DAP) scale.<h4>Design</h4>Prospective cohort study for psychometric evaluation.<h4>Setting</h4>UK.<h4>Participants</h4>Women in the UK aged 15 years to menopause, who were not pregnant at the time of recruitment in October 2018, were eligible. 994 women completed the baseline survey and 90.2% of women eligible for the 12-month survey participated.<h4>Primary and secondary outcome measures</h4>The DAP scale was assessed according to key measurement properties of validity (construct (structural and hypothesis testing) and criterion (predictive)), reliability (internal consistency using Cronbach's alpha and test-retest using intraclass correlation coeff2022-01-01T00:00:00Z2022 Jul2025-04-21T22:31:25.169Z2025-04-05T18:47:45.73ZS-EPMC93280973587900410.1136/bmjopen-2021-060287