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Measuring Levels of Experiential States in Clinical Applications by Discan: A Discretized Analog Method

Published online by Cambridge University Press:  16 June 2009

Avinash C. Singh  and
Christopher D. Bilsbury
Avinash C. Singh
Affiliation:
Department of Mathematics, Memorial University of Newfoundland,
Christopher D. Bilsbury
Affiliation:
Psychology Department, Camp Hill Hospital, Halifax, Nova Scotia
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Abstract

A clinically-oriented description is provided of the Discretized Analog or Discan method (Singh and Bilsbury, 1984) for obtaining reliable and precise measures of subjectively experienced dysfunction variables whose possible values form a continuum. The method can provide a 14-point ordered categorical scale with only four reference levels which represent some of the possible values of intensity of the variable. The process of Discan administration consists of a series of repeated comparisons of the true or perceived level with one or two reference levels at a time. It therefore allows for use of elaborate descriptive statements for reference levels. It is recommended following Shapiro (1961, 1975) that the reference levels be ideographic, ipsitive and should reflect ordered steps of recovery from the dysfunction. Discan overcomes several limitations of the commonly used rating scales. An application of Discan to the MSB relaxation technique is presented as an illustration.

Type
Research Article
Information
Behavioural and Cognitive Psychotherapy , Volume 17 , Issue 1 , January 1989 , pp. 27 - 41
Copyright
Copyright © British Association for Behavioural and Cognitive Psychotherapies 1989

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References

Barlow, D. H., Hayes, S. C. and Nelson, R. O. (1984). The Scientist—Practitioner: Research and Accountability in Clinical and Educational Settings. New York: Pergamon Press.Google Scholar
Bech, P., Kastrup, M. and Rafaelson, O. J. (1986). Mini-Compendium of Rating Scales for States of Anxiety, Depression, Mania, Schizophrenia, with Corresponding DSM-III Syndromes. Acta Psychiatrica Scandinavica 73, (Supplement No. 326).Google Scholar
Bilsbury, C. D. (1988). The MSB Relaxation Technique and its Measurement by Discan. Canadian Journal of Rehabilitation 1:4 (Supplement) 51–52.Google Scholar
Blanz, R. and Ghiselli, E. E. (1972). The Mixed Standard Scale: A New Rating System. Personnel Psychology 25, 185–199.CrossRefGoogle Scholar
Choate, R., Smith, A., Cardillo, J. E. and Thompson, M. A. (1981). Training in the Use of Goal Attainment Scaling. Community Mental Health Journal 17, 171–181.CrossRefGoogle ScholarPubMed
Ingham, J. G.A Method of Observing Symptoms and Attitudes. British Journal of Social and Clinical Psychology 4, 131–140.CrossRefGoogle Scholar
Keele, K. (1948). The Pain Chart. The Lancet (ii), 6–8.CrossRefGoogle Scholar
Liddell, A., Bilsbury, C. D. and Rattenbury, C. (1987). Concordance and Discordance of Cognitive, Behavioural and Somatic Self-ratings as a Function of Exposure: A Discan Analysis. Behaviour Research and Therapy 25, 425–428.CrossRefGoogle ScholarPubMed
Mishra, K., Singh, A. C. and Bilsbury, C. D. (1986). The MSB Relaxation Technique. Technical Report, Department of Psychiatry, Memorial University of Newfoundland, Canada.Google Scholar
Mulhall, D. J. (1976). Systematic Self-Assessment by PQRST. Psychological Medicine 6, 591–597.CrossRefGoogle Scholar
Mulhall, D. J. (1978). Manual for Personal Questionnaire Rapid Scaling Technique. Berkshire, Windsor, NFER Publishing Company.Google Scholar
Phillips, J. P. N. (1963). Scaling and Personal Questionnaires. Nature 200, 1347–1348.CrossRefGoogle ScholarPubMed
Phillips, J. P. N. (1966). On a Certain Type of Partial Higher-Ordered Metric Scaling. British Journal of Mathematical and Statistical Psychology 19, 77–86.CrossRefGoogle ScholarPubMed
Phillips, J. P. N. (1970). A Further Type of Personal Questionnaire Technique. British Journal of Social and Clinical Psychology 9, 338–346.CrossRefGoogle ScholarPubMed
Phillips, J. P. N. (1977). Generalized Personal Questionnaire Techniques. In The Measurement of Intra-Personal Space by Grid Technique, Slater, P. (Ed.), Volume 2, Wiley, London.Google Scholar
Reading, A. E. and Newton, J. R. (1978). A Card-Sort Method of Pain Assessment. Journal of Psychosomatic Research 22, 503–512.CrossRefGoogle ScholarPubMed
Saal, F. E. and Landy, F. J. (1977). The Mixed Standard Rating Scale: An Evaluation. Organizational Behaviour and Human Performance 18, 19–35.CrossRefGoogle Scholar
Shapiro, M. B. (1961). A Method of Measuring Psychological Changes Specific to the Individual Psychiatric Patient. British Journal of Medical Psychology 34, 151–155.CrossRefGoogle Scholar
Shapiro, M. B. (1966). The Single Case in Clinical-Psychological Research. Journal of General Psychology 74, 3–23.CrossRefGoogle ScholarPubMed
Shapiro, M. B. (1975). The Assessment of Self-Reported Dysfunctions: A Manual with its Rationale and Applications. Parts I and II. Unpublished manuscript. Department of Psychology, Institute of Psychiatry, London University.Google Scholar
Singh, A. C. and Bilsbury, C. D. (1982). Scaling Subjective Variables by SPC (Sequential Pair Comparisons). Behavioural Psychotherapy 10, 128–145.CrossRefGoogle Scholar
Singh, A. C. and Bilsbury, C. D. (1984). Estimating Levels of Subjectively Experienced States on Discan Scales by RCS: A Repeated Comparison System. Technical Report, Psychology Department, Memorial University of Newfoundland. Canada.Google Scholar
Singh, A. C. and Bilsbury, C. D. (1989). Discan Measures of Pain-Related Attitudes. Paper submitted for publication.Google Scholar
Wallace, C. J. and Elder, J. P. (1980). Statistics to Evaluate Measurement Accuracy and Treatment Effects in Single Subject Research Designs. In Progress in Behaviour Modification 10, Hersen, M., Eisler, R. M. and Miller, P. M. (Eds.), New York: Academic Press, 39–79.Google Scholar
Yule, W. and Hemsley, D. (1977). Single Case Method in Medical Psychology. In Contributions to Medical Psychology Rachman, S. (Ed.), Volume 1, Oxford: Pergamon Press.Google Scholar
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