2.4.2. Cognitive Interviews

Nine cognitive interviews in each setting were conducted to establish whether caregivers understood each item. They were also asked how they would explain the question back to the interviewer [21]. Responses were recorded and transcribed verbatim into a spreadsheet for review. All comments were translated into English. Translated responses from cognitive interviews were collated into one document and reviewed by the core team (G.L., G.Mc.C., M.G., M.J., P.K., T.D., V.C.). Input was requested from local investigators (C.R.L.A., L.M.S., M.A.R.) during a teleconference. The results were used to inform decisions to revise wording or retain/delete items as described in the results to ensure optimal clarity of the formulation of all items chosen in the final tool. No formal qualitative analyses were conducted.
