ArticleQuality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation2007
Differential item functioning impact in a modified version of the Roland-Morris Disability Questionnaire.
Article in Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
12 citing papers in PubMed.
- Revised Chinese resident health literacy scale for the older adults in China: simplified version and initial validity testing.Frontiers in public health · 2023Trial
- Cross-Diagnostic Validity of the Congenital Glaucoma Caregiver's Quality of Life Questionnaire (CarCGQoL).Translational vision science & technology · 2020Article
- Differential item functioning and its relevance to epidemiology.Current epidemiology reports · 2019Article
- Article
- Extension of an iterative hybrid ordinal logistic regression/item response theory approach to detect and account for differential item functioning in longitudinal data.Psychological test and assessment modeling · 2013Article
- Article
- Examining multiple sources of differential item functioning on the Clinician & Group CAHPS® survey.Health services research · 2011Article
- Multiple, correlated covariates associated with differential item functioning (DIF): Accounting for language DIF when education levels differ across languages.Ageing research · 2011Article
- lordif: An R Package for Detecting Differential Item Functioning Using Iterative Hybrid Ordinal Logistic Regression/Item Response Theory and Monte Carlo Simulations.Journal of statistical software · 2011Article
- Differential item functioning (DIF) analyses of health-related quality of life instruments using logistic regression.Health and quality of life outcomes · 2010Article
- Differential item functioning was negligible in an adaptive test of functional status for patients with knee impairments who spoke English or Hebrew.Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation · 2009Article
- Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors.
Funding
Abstract
objectiveTo evaluate a modified version of the Roland-Morris Disability Questionnaire for differential item functioning (DIF) related to several covariates.
backgroundDIF occurs in an item when, after controlling for the underlying trait measured by the test, the probability of endorsing the item varies across groups.
methodsSecondary data analysis of two studies of participants with back pain (total n = 875). We used a hybrid item response theory/ logistic regression approach for detecting DIF. We obtained scores that accounted for DIF. We evaluated the impact of DIF on individual and group scores, and compared scores that ignored or accounted for DIF in terms of the strength of association with SF-36 subscale scores.
resultsDIF was found in 18/23 items. Salient scale-level differential functioning was found related to age, education, and employment. Overall 24 participants (3%) had salient scale-level differential functioning. Mean scores across demographic groups differed minimally when accounting for DIF. The strength of association of scores with SF-36 scores was similar for scores that ignored and scores that accounted for DIF.
conclusionsThe modified version of the Roland-Morris Disability Questionnaire appears to have largely negligible DIF related to the covariates assessed here.
Indexed as
Identifiers
17443419What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.