55 hypochondria, and hysteria) of the MMPI and the affective dimension of the McGill Pain Questionnaire. Diller (1980) wrote that because of the variety of specific pain terms, some type of cognitive sorting must take place when describing the experience. The terms we use for pain may function on more than one level so Diller finds the McGill Pain Questionnaire useful in distinguishing the levels. "In this way it may become possible to connect more certainly the tertiary and quaternary accounts of pain and to associate linguistic descriptions with quantitative clinical measurements" (p. 10). Gaston-Johansson (1984), in a study to determine if the concepts pain, ache, and hurt differ from each other in intensity, gave the McGill Pain Questionnaire and a visual analogue scale (VAS) to 41 registered nurses and 12 chronic pain patients. She did a pairwise comparison of pain versus ache and ache versus hurt using the visual analogue scale, the number of words chosen scale, and the pain rating index scale of the McGill Pain Questionnaire. The investigator found significant differences between the words on all three scales for the nurses' rating. The patients chose fewer words to rate intensity than the nurses chose. She recommended using the word hurt on the lower end of a scale and pain on the higher end, concluding that her findings confirm a difference in intensity between the words. A conclusion from the above studies is that the McGill Pain Questionnaire is an appropriate instrument for measuring both acute and chronic pain. Evidence exists that this instrument may also