Development and Content Validation of the 10-item Well-being Instrument (WiX) for use in Economic Evaluation Studies

AbstractIt ’s increasingly recognized that the evaluative space of economic evaluations in health and social care needs to be broadened and instruments measuring well-being are required. A generic measure of well-being comprehensively capturing all relevant domains of well-being in the adult population is no t available. The aim is to describe the development of such an instrument, the 10-item Well-being instrument (WiX), and to report the findings from a content validation study. A draft version of the instrument was based on available instruments pursuing the same aim, a comprehensive theoretical fram ework of the domains of well-being, and recent empirical evidence from the general population about the constituents of well-being. Content validation was conducted following COSMIN methodology and investigated relevance, comprehensiveness, and comprehensibility. In the qualitative content validatio n, semi-structured interviews were conducted with experts and members of the general population. During quantitative content validation, a representative sample (n = 501) from the general population completed an online survey. The qualitative validation showed the relevance and comprehensiveness of the WiX were adequate, but several changes were made to consecutive draft versions of the items and their descriptions and response levels to improve comprehen sibility. The quantitative validation confirmed these findings and resulted in some additional, minor changes. A new instr...
Source: Applied Research in Quality of Life - Category: International Medicine & Public Health Source Type: research