title: Validation of the Multidimensional Affect and Pain Survey (MAPS).
abstract: The concurrent construct validity of the Multidimensional Affect and Pain Survey (MAPS) was determined in a sample of 100 oncology outpatients. As recommended by Jensen, we examined the frequency pattern of correlations between MAPS and standard questionnaires that reached a criterion level of significance. As predicted, the 17 subclusters in the MAPS Somatosensory Pain supercluster showed a higher mean frequency of criterion correlations with the 4 sensory-related groups of items from the MPQ and, equally important, a lower frequency of criterion correlations with unrelated constructs, POMS, and the MPQ Affective Class. The 8 subclusters in the MAPS Emotional Pain supercluster revealed a high frequency of correlations with related POMS and FACT-G scales and (negatively) with the KPS score; equally important, there were far fewer criterion correlations of these scales with unrelated MPQ sensory classes. The 5 subclusters of the MAPS Well-Being supercluster showed a high frequency of criterion correlations with the POMS Vigor/Activity Scale, related FACT-G scales, and the KPS score and lower frequencies of correlation with the unrelated MPQ sensory groups. In conclusion, the 101-item MAPS yields more information about a patient's pain, emotional, physical, and cognitive status than does a much longer test battery consisting of 191 items contained in the MPQ, POMS, and FACT-G questionnaires.
  
  
  CONCLUSIONS
  This study demonstrates the validity of a new pain questionnaire developed objectively by multivariate cluster analysis rather than subjectively by expert opinion. MAPS assesses patients' somatosensory and emotional experiences, and feelings of well-being with greater scope and accuracy than a battery of questionnaires, and it does so in much less time.
authors.affiliation: Department of Biopsychology, New York State Psychiatric Institute, New York, New York, USA. hknotkov@chpnet.org
authors.forename: Helena
authors.initials: H
authors.lastname: Knotkova
authors.forename: W Crawford
authors.initials: WC
authors.lastname: Clark
authors.forename: Mary L
authors.initials: ML
authors.lastname: Keohan
authors.forename: John P
authors.initials: JP
authors.lastname: Kuhl
authors.forename: Rachel T
authors.initials: RT
authors.lastname: Winer
authors.forename: Ralph N
authors.initials: RN
authors.lastname: Wharton
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D016000:Cluster Analysis; D005260:Female; D006306:Health Surveys; D006801:Humans; D008297:Male; D008875:Middle Aged; D019964:Mood Disorders / Q000175:diagnosis* / Q000209:etiology; D015999:Multivariate Analysis; D009369:Neoplasms / Q000150:complications / Q000523:psychology; D010146:Pain / Q000175:diagnosis* / Q000209:etiology / Q000523:psychology; D010147:Pain Measurement; D015203:Reproducibility of Results; D020886:Somatosensory Disorders / Q000175:diagnosis* / Q000209:etiology