The McGill Pain Questionnaire (MPQ) consists of 78 words, obtained from pain patient interviews and the clinical literature, which describe distinctly different aspects of the experience of pain (Melzack 1975). The words are categorized into three major classes:
Each class comprises several subclasses, which contain a group of words that are considered by most subjects to be qualitatively similar (Melzack and Torgerson 1971).
The descriptor lists of.