2016
DOI: 10.1007/s11136-016-1342-2
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The e-MSWS-12: improving the multiple sclerosis walking scale using item response theory

Abstract: MSWS-12 measurement error depends on walking ability, but could be lowered by improving or replacing items with low information or DIF. The e-MSWS-12 includes IRT-based scoring, error checking, and an estimated T25FW derived from MSWS-12 responses. It is available at https://ms-irt.shinyapps.io/e-MSWS-12 .

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Cited by 16 publications
(16 citation statements)
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“…5,10 CAT specifically offers the advantage of selecting the best items to estimate the measurable outcomes of a survey (ie, pain, physical function), resulting in fewer responses needed for accuracy, while IRT matches actual to predicted responses using parametric category response curves to establish item-trait relationships. 6,8 Utilizing IRT and CAT, the PROMIS seeks to accomplish the goal of providing precise health state estimations without floor or ceiling effects while requiring the completion of fewer individual questions when compared with legacy PROMs. 23…”
mentioning
confidence: 99%
“…5,10 CAT specifically offers the advantage of selecting the best items to estimate the measurable outcomes of a survey (ie, pain, physical function), resulting in fewer responses needed for accuracy, while IRT matches actual to predicted responses using parametric category response curves to establish item-trait relationships. 6,8 Utilizing IRT and CAT, the PROMIS seeks to accomplish the goal of providing precise health state estimations without floor or ceiling effects while requiring the completion of fewer individual questions when compared with legacy PROMs. 23…”
mentioning
confidence: 99%
“…31 Patients also completed the CAT version of PROMIS-PF and PROMIS-PI 25 via the Outcome Based Electronic Research Database (Universal Research Solutions). 15 For PROMIS CAT, the measures are scored on a T-score metric where a score of 50 represents the average of the general population of the United States and 10 represents the standard deviation. A higher PROMIS-PI score represents greater (worse) pain, whereas a higher PROMIS-PF score represents greater (better) function.…”
Section: Methodsmentioning
confidence: 99%
“…PROMIS functions with integrated item response theory with computerized adaptive testing (CAT) to provide a single, generalizable, and validated patient-reported outcome measure (PROM) while attempting to negate floor or ceiling effects with fewer individual questions when compared with legacy PROMs. 9,11,15,17,40 Previous studies have used PROMIS for evaluating patients with meniscal surgery, rotator cuff tears, shoulder arthritis, shoulder instability, and anterior cruciate ligament tears. 2,3,14,19,20 However, there is a relative paucity of literature applying PROMIS to patients who have undergone hip arthroscopy for femoroacetabular impingement syndrome (FAIS).…”
mentioning
confidence: 99%
“…There were six studies that evaluated internal consistency. The methodological quality of four [33][34][53][54] was rated as 'excellent', for one [55] it was rated as 'good' and one [56] as 'poor' due to a small sample size. All six studies evaluated the MSWS-12 and were rated as positive ('+') for the quality of their results.…”
Section: Internal Consistencymentioning
confidence: 99%