Relative validity of the modified American Shoulder and Elbow Surgeons (M-ASES) questionnaire using item response theory.

Journal Article (Journal Article)

The modified American Shoulder and Elbow Surgeon's (M-ASES) questionnaire is purported to be a non-region specific functional measure of the entire upper extremity. The purpose of this study was to determine the factor structure of the M-ASES and to determine item-fit of the M-ASES using item response theory (IRT). Analyses included univariate baseline demographics, factor analysis, convergent/construct validation with the SF-12, and graded response IRT of the M-ASES. 964 patients of an orthopedic practice with a variety of upper extremity dysfunctions participated in this trial. The M-ASES demonstrated two dimensions (wrist/hand and shoulder dysfunction) and exhibited excellent discrimination and threshold specification. The instrument correlated well with the mental and physical dimensions of the SF-12. The M-ASES should be considered an excellent tool for measure of whole upper extremity dysfunction.

Full Text

Duke Authors

Cited Authors

  • Cook, C; Hegedus, E; Goode, A; Mina, C; Pietrobon, R; Higgins, LD

Published Date

  • January 2008

Published In

Volume / Issue

  • 28 / 3

Start / End Page

  • 217 - 223

PubMed ID

  • 17701179

Electronic International Standard Serial Number (EISSN)

  • 1437-160X

Digital Object Identifier (DOI)

  • 10.1007/s00296-007-0420-8


  • eng

Conference Location

  • Germany