The importance of content and face validity in instrument development: lessons learnt from service users when developing the Recovering Quality of Life measure (ReQoL).
Janice ConnellJill CarltonAndrew GrundyElizabeth Taylor BuckAnju Devianee KeetharuthThomas RickettsMichael BarkhamDan RobothamDiana RoseJohn BrazierPublished in: Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation (2018)
This research has underlined the importance of service users' views on the acceptability and validity of items for use in developing a new measure. Whether or not service users favoured an item was associated with their ability or intention to respond accurately and honestly to the item which will impact on the validity and sensitivity of the measure.