Dataset for 'Geeraerts et al. (2024): Uncovering the daily experiences of people living with advanced cancer using an experience sampling method questionnaire: development, content validation, and optimization study'

The study included semistructured interviews with 43 people with stage IV breast cancer or stage III to IV lung cancer and 8 health care professionals. Round 1 assessed the appropriateness, relative importance, relevance, and comprehensiveness of an initial set of ESM items that were developed based on the existing questionnaires. Round 2 tested the comprehensibility of ESM items. Round 3 tested the usability of the digital ESM-AC questionnaire using the m-Path app. Analyses included descriptive statistics and qualitative content analysis. The dataset contains interview transcripts and raw questionnaire response data.