Exploring rating scale responsiveness: does the total score reflect the sum of its parts?

Rory J. O'Connor, Stefan J. Cano, Alan J. Thompson, Jeremy C. Hobart*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Evaluating rehabilitation requires rating scales that detect change. The authors examined Barthel Index (BI) data from 1,495 patients at a neurorehabilitation unit to determine whether total scale responsiveness accurately reflects item responsiveness. Total score effect sizes were moderate to large (0.47 to 1.09). Item-level effect sizes (0.13 to 1.16) reveal floor (3.5 to 82.3%) and ceiling (9.7 to 95.4%) effects. Results suggest BI total score effect sizes may hide item-level weaknesses and may underestimate the impact of rehabilitation.
Original languageEnglish
Pages (from-to)1842-1844
Number of pages0
JournalNeurology
Volume62
Issue number10
DOIs
Publication statusPublished - 25 May 2004

Keywords

  • Activities of Daily Living
  • Adolescent
  • Adult
  • Aged
  • 80 and over
  • Central Nervous System Diseases
  • Confounding Factors
  • Epidemiologic
  • Evidence-Based Medicine
  • Female
  • Humans
  • Male
  • Middle Aged
  • Multiple Sclerosis
  • Reproducibility of Results
  • Severity of Illness Index
  • Spinal Cord Injuries
  • Stroke Rehabilitation

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