ArticleQuality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation2017
Impact of IRT item misfit on score estimates and severity classifications: an examination of PROMIS depression and pain interference item banks.
Article in Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed.
- Extending the PROMIS item bank "ability to participate in social roles and activities": a psychometric evaluation using IRT.Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation · 2024Article
- Development and calibration data for the Illness Burden item bank: a new computer adaptive test for persons with type 2 diabetes mellitus.Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation · 2023Article
- Development and calibration data for the Healthcare Access Item Bank: a new computer adaptive test for persons with type 2 diabetes mellitus.Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation · 2023Article
- Development and calibration data for the Medication Adherence Item Bank: a new computer adaptive test for persons with type 2 diabetes mellitus.Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation · 2023Article
- Psychometric Validation of the Spanish Gaming Disorder Test (GDT): Item Response Theory and Measurement Invariance Analysis.International journal of mental health and addiction · 2021Article
- A study of alternative approaches to non-normal latent trait distributions in item response theory models used for health outcome measurement.Statistical methods in medical research · 2020Article
- Examining the Impacts of Rater Effects in Performance Assessments.Applied psychological measurement · 2019Article
- Careless responding in internet-based quality of life assessments.Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation · 2018Article
- Comparing five depression measures in depressed Chinese patients using item response theory: an examination of item properties, measurement precision and score comparability.Health and quality of life outcomes · 2017Article
- Practical Consequences of Item Response Theory Model Misfit in the Context of Test Equating with Mixed-Format Test Data.Frontiers in psychology · 2017Article
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Authors and funding
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Funding
Abstract
purposeIn patient-reported outcome research that utilizes item response theory (IRT), using statistical significance tests to detect misfit is usually the focus of IRT model-data fit evaluations. However, such evaluations rarely address the impact/consequence of using misfitting items on the intended clinical applications. This study was designed to evaluate the impact of IRT item misfit on score estimates and severity classifications and to demonstrate a recommended process of model-fit evaluation.
methodsUsing secondary data sources collected from the Patient-Reported Outcome Measurement Information System (PROMIS) wave 1 testing phase, analyses were conducted based on PROMIS depression (28 items; 782 cases) and pain interference (41 items; 845 cases) item banks. The identification of misfitting items was assessed using Orlando and Thissen's summed-score item-fit statistics and graphical displays. The impact of misfit was evaluated according to the agreement of both IRT-derived T-scores and severity classifications between inclusion and exclusion of misfitting items.
resultsThe examination of the presence and impact of misfit suggested that item misfit had a negligible impact on the T-score estimates and severity classifications with the general population sample in the PROMIS depression and pain interference item banks, implying that the impact of item misfit was insignificant.
conclusionsFindings support the T-score estimates in the two item banks as robust against item misfit at both the group and individual levels and add confidence to the use of T-scores for severity diagnosis in the studied sample. Recommendations on approaches for identifying item misfit (statistical significance) and assessing the misfit impact (practical significance) are given.
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