ArticleHealth and quality of life outcomes2015
Differential item functioning (DIF) of SF-12 and Q-LES-Q-SF items among french substance users.
Article in Health and quality of life outcomes, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.
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Who cites it
20 citing papers in PubMed, 38 citations in OpenAlex.
- The Cannabis Health Literacy Questionnaire - Assessing Reliability and Known-Groups Validity in a Canadian Adult Sample.Journal of drug education · 2026Article
- Validity and reliability of the Greek Migraine-Specific Quality of Life Questionnaire (MSQ Version 2.1-GR).Journal of patient-reported outcomes · 2024Article
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- Profiles of cannabis users and impact on cannabis cessation.PloS one · 2024Article
- Validation of Generalized Anxiety Disorder 6 (GAD-6)-A Modified Structure of Screening for Anxiety in the Adolescent French Population.International journal of environmental research and public health · 2023Article
- Prevalence and Family Determinants of Geriatric Depression Among Elderly People in Elderly Support Groups in Rwanda.Psychology research and behavior management · 2023Article
- A comparison of methods to address item non-response when testing for differential item functioning in multidimensional patient-reported outcome measures.Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation · 2022Article
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- Poor Sleep Quality and Other Risk Factors for Unemployment Among Patients on Opioid Agonist Treatment.Substance abuse : research and treatment · 2022Article
- Challenges and lessons learned from using anchoring vignettes to explore quality of life response behavior.Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation · 2020Article
- Patient's early satisfaction with care: a predictor of health-related quality of life change among outpatients with substance dependence.Health and quality of life outcomes · 2020Article
- Article
- Distributional Regression Techniques in Socioeconomic Research on the Inequality of Health with an Application on the Relationship between Mental Health and Income.International journal of environmental research and public health · 2019Article
- Differential item functioning of the SF-12 in a population-based regional joint replacement registry.Health and quality of life outcomes · 2019Article
- Migraine-Specific Quality of Life Questionnaire Chinese version 2.1 (MSQv2.1-C): psychometric evaluation in patients with migraine.Health and quality of life outcomes · 2019Article
- Factor structure of the Q-LES-Q short form in an enrolled mental health clinic population.Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation · 2018Article
- Acupoint herbal plaster for patients with primary dysmenorrhea: study protocol for a randomized controlled trial.Trials · 2018Article
- Measurement invariance of the SF-12 among different demographic groups: The HELIUS study.PloS one · 2018Article
- Examining gender-related differential item functioning of the Veterans Rand 12-item Health Survey.Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation · 2017Article
- The effects of patient and physician characteristics on early outpatient satisfaction with substance dependence care: results of the SUBUSQOL study.Patient preference and adherence · 2017Article
Corrections and comments
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Authors and funding
6 authors at 4 institutions in 4 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundDifferential Item Functioning (DIF) is investigated to ensure that each item displays a consistent pattern of responses irrespective of the characteristics of the respondents. Assessing DIF helps to understand the nature of instruments, to assess the quality of a measure and to interpret results. This study aimed to examine whether the items of the Quality of Life Enjoyment and Satisfaction Questionnaire-Short Form (Q-LES-Q-SF) and Short-Form 12 (SF-12) exhibit DIF.
methodA total of 124 outpatients diagnosed with substance dependence participated in a cross-sectional, multicenter study. In addition to the Q-LES-Q-SF and SF-12 results, demographic data such as age, sex, type of substance dependence and education level were collected. Rasch analysis was conducted (using RUMM2020 software) to assess DIF of the Q-LES-Q-SF and SF-12 items.
resultsFor SF-12, significant age-related uniform DIF was found in two of the 12 items, and sex-related DIF was found in one of the 12 items. All of the observed DIF effects in SF-12 were found among the mental health items. Three items showed DIF on the Q-LES-Q-SF; however, the impact of DIF item on the delta score calculation for the comparisons of self-reported health status between the groups was minimal in the SF-12 and small in the Q-LES-Q-SF.
conclusionThese results indicated that no major measurement bias affects the validity of the self-reported health status assessed using the Q-LES-Q-SF or SF-12. Thus, these questionnaires are largely robust measures of self-reported health status among substance users.
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