Measuring the quality of life of people at the end of life: The McGill Quality of Life Questionnaire–Revised

Background:The McGill Quality of Life Questionnaire has been widely used with people with life-threatening illnesses without modification since its publication in 1996. With use, areas for improvement have emerged; therefore, various minor modifications were tested over time.Aim:To revise the McGill Quality of Life Questionnaire (McGill Quality of Life Questionnaire–Revised) while maintaining or improving its psychometric properties and length, keeping it as close as possible to the McGill Quality of Life Questionnaire to enable reasonable comparison with existing McGill Quality of Life Questionnaire literature.Design:Data sets from eight studies were used (four studies originally used to develop the McGill Quality of Life Questionnaire, two to develop new McGill Quality of Life Questionnaire versions, and two with unrelated purposes). The McGill Quality of Life Questionnaire–Revised was developed using analyses of measurement invariance, confirmatory factor analysis, and calculation of correlations with ...