ArticlePsychometrika2015
A Statistical Test for Differential Item Pair Functioning.
Article in Psychometrika, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 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
16 citing papers in PubMed.
- Estimating Trends With Differential Item Functioning: A Comparison of Five IRT-Based Approaches.Educational and psychological measurement · 2026Article
- DIF Analysis with Unknown Groups and Anchor Items.Psychometrika · 2024Article
- DIF Statistical Inference Without Knowing Anchoring Items.Psychometrika · 2023Article
- A Note on the Structural Change Test in Highly Parameterized Psychometric Models.Psychometrika · 2022Article
- Partial Measurement Invariance: Extending and Evaluating the Cluster Approach for Identifying Anchor Items.Applied psychological measurement · 2021Article
- Not all DIF is shaped similarly.Psychometrika · 2021Article
- Differential Item Functioning Analysis Without A Priori Information on Anchor Items: QQ Plots and Graphical Test.Psychometrika · 2021Article
- Anchor Point Selection: Scale Alignment Based on an Inequality Criterion.Applied psychological measurement · 2021Article
- Psychometric properties of the Patient-Reported Outcomes Measurement Information System (PROMIS) Sleep Disturbance and Sleep-Related Impairment item banks in adolescents.Journal of sleep research · 2021Article
- Graded response model fit, measurement invariance and (comparative) precision of the Dutch-Flemish PROMIS® Upper Extremity V2.0 item bank in patients with upper extremity disorders.BMC musculoskeletal disorders · 2020Article
- Testing the Local Independence Assumption of the Rasch Model WithApplied psychological measurement · 2020Article
- A Rasch Model and Rating System for Continuous Responses Collected in Large-Scale Learning Systems.Frontiers in psychology · 2020Article
- Looking at DIF From a New Perspective: A Structure-Based Approach Acknowledging Inherent Indefinability.Applied psychological measurement · 2019Article
- Analyzing differential item functioning of the Nottingham Health Profile by Mixed Rasch Model.Turkish journal of physical medicine and rehabilitation · 2018Article
- Score-Based Tests of Differential Item Functioning via Pairwise Maximum Likelihood Estimation.Psychometrika · 2018Article
- Monitoring Countries in a Changing World: A New Look at DIF in International Surveys.Psychometrika · 2017Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
2 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
This paper presents an IRT-based statistical test for differential item functioning (DIF). The test is developed for items conforming to the Rasch (Probabilistic models for some intelligence and attainment tests, The Danish Institute of Educational Research, Copenhagen, 1960) model but we will outline its extension to more complex IRT models. Its difference from the existing procedures is that DIF is defined in terms of the relative difficulties of pairs of items and not in terms of the difficulties of individual items. The argument is that the difficulty of an item is not identified from the observations, whereas the relative difficulties are. This leads to a test that is closely related to Lord's (Applications of item response theory to practical testing problems, Erlbaum, Hillsdale, 1980) test for item DIF albeit with a different and more correct interpretation. Illustrations with real and simulated data are provided.
Indexed as
Identifiers
25223228What 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.