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Evaluation of a role functioning computer adaptive test (RF-CAT)
University of Massachusetts Medical School Faculty Publications
  • Milena D. Anatchkova, University of Massachusetts Medical School
  • Matthias S. F. Rose, University of Massachusetts Medical School
  • John E. Ware, Jr., University of Massachusetts Medical School
  • Jakob B. Bjorner, National Institute of Occupational Health, Copenhagen
UMMS Affiliation
Department of Quantitative Health Sciences
Publication Date
Document Type
Adolescent; Adult; Aged; Aged, 80 and over; Chronic Disease; *Computers; Cross-Sectional Studies; Diagnosis, Computer-Assisted; Female; *Health Status Indicators; Humans; Male; Middle Aged; Patient Acceptance of Health Care; Psychometrics; *Quality of Life; Questionnaires; Reproducibility of Results; Self Report; *Sick Role; Sickness Impact Profile; Young Adult

OBJECTIVES: To evaluate the validity and participants' acceptance of an online assessment of role function using computer adaptive test (RF-CAT).

METHODS: The RF-CAT and a set of established quality of life instruments were administered in a cross-sectional study in a panel sample (n = 444) recruited from the general population with over-selection of participants with selected self-report chronic conditions (n = 225). The efficiency, score accuracy, validity, and acceptability of the RF-CAT were evaluated and compared to existing measures.

RESULTS: The RF-CAT with a stopping rule of six items with content balancing used 25 of the available bank items and was completed on average in 66 s. RF-CAT and the legacy tools scores were highly correlated (.64-.84) and successfully discriminated across known groups. The RF-CAT produced a more precise assessment over a wider range than the SF-36 Role Physical scale. Patients' evaluations of the RF-CAT system were positive overall, with no differences in ratings observed between the CAT and static assessments.

CONCLUSIONS: The RF-CAT was feasible, more precise than the static SF-36 RP and equally acceptable to participants as legacy measures. In empirical tests of validity, the better performance of the CAT was not uniformly statistically significant. Further research exploring the relationship between gained precision and discriminant power of the CAT assessment is needed.

  • Role function,
  • Computer adaptive test,
  • Patient-reported outcome,
  • Health-related quality of life
DOI of Published Version
Anatchkova M, Rose M, Ware J, Bjorner JB. Evaluation of a role functioning computer adaptive test (RF-CAT). Qual Life Res. 2013 Jun;22(5):1085-92. doi:10.1007/s11136-012-0215-6.
Related Resources
Link to Article in PubMed
PubMed ID
Citation Information
Milena D. Anatchkova, Matthias S. F. Rose, John E. Ware and Jakob B. Bjorner. "Evaluation of a role functioning computer adaptive test (RF-CAT)" Vol. 22 Iss. 5 (2013) ISSN: 0962-9343 (Linking)
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