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Estimating meaningful thresholds for multi-item questionnaires using item response theory
PurposeMeaningful thresholds are needed to interpret patient-reported outcome measure (PROM) results. This paper introduces a new method, based on...
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Item analysis on the quality of life scale for anxiety disorders QLICD-AD(V2.0) based on classical test theory and item response theory
BackgroundAnxiety disorders can cause serious physical and psychological damage, so many anxiety scales have been developed internationally to...
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Identifying Individuals with Highest Social Risk in Adults with Type 2 Diabetes Using Item Response Theory
ObjectiveThe aim of this analysis was to create a parsimonious tool to screen for high social risk using item response theory to discriminate across...
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A 13-item Health of the Nation Outcome Scale (HoNOS-13): validation by item response theory (IRT) in patients with substance use disorder
BackgroundThe Health of the Nation Outcome Scale (HoNOS) is a widely used 12-item tool to assess mental health and social functioning. The French...
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Unsupervised item response theory models for assessing sample heterogeneity in patient-reported outcomes measures
PurposeUnsupervised item-response theory (IRT) models such as polytomous IRT based on recursive partitioning (IRTrees) and mixture IRT (MixIRT)...
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Hyperhidrosis quality of life index (HidroQoL): further validation by applying classical test theory and item response theory using data from a phase III clinical trial
BackgroundThe Hyperhidrosis Quality of Life Index (HidroQoL ©) is a well-developed and validated patient-reported outcome measure assessing the...
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Analyzing the psychometric properties of the PHQ-9 using item response theory in a Chinese adolescent population
BackgroundPeople are more likely to fall victim to depression during adolescence since it is a period of rapid biopsychosocial transformation....
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Problematic Shop** Behavior: An Item Response Theory Examination of the Seven-Item Bergen Shop** Addiction Scale
There has been an increasing amount of research examining problematic shop** behavior (PSB), often referred to in the psychological literature as...
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Validation of the Chinese version of the Oslo-3 Social Support Scale among nursing students: a study based on Classical Test Theory and Item Response Theory models
BackgroundNursing students are encountering a range of health issues. Assessing social support is a key component in most questionnaire surveys...
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Validation and optimization of the French Generic Adherence for Chronic Diseases Profile (GACID-P) using classical test and item response theory
BackgroundThe Generic Adherence for Chronic Diseases Profile is a French generic scale (GACID-P) developed to measure adherence in several disease...
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Development and application of the Meal and Snack Assessment (MESA) quality scale for children and adolescents using item response theory
BackgroundMeals differ in terms of food items and nutritional quality. The aim of the present study was to propose a scale to measure the meals...
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Establishing thresholds for meaningful within-individual change using longitudinal item response theory
PurposeThresholds for meaningful within-individual change (MWIC) are useful for interpreting patient-reported outcome measures (PROM). Transition...
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A 4pL item response theory examination of perceived stigma in the screening of eating disorders with the SCOFF among college students
We examined the psychometric properties of the SCOFF, a screening instrument for eating disorders, with consideration of the perceived stigma of...
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Item response theory-based psychometric analysis of the Short Warwick-Edinburgh Mental Well-Being Scale (SWEMWBS) among adolescents in the UK
BackgroundMiddle and late adolescence is the period in a person's life that is most vulnerable to mental health problems. To enable an evidence base...
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Assessing Opioid Abuse in Chronic Pain Patients: Further Validation of the Prescription Opioid Misuse Index (POMI) Using Item Response Theory
Due the limitations of the previous validations, the purpose of this study was to further validate the Prescription Opioid Misuse Index (POMI) in a...
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Scoring the EQ-HWB-S: can we do it without value sets? A non-parametric item response theory analysis
BackgroundOnly one pilot value set (UK) is currently available for the EQ Health and Wellbeing Instrument short version (EQ-HWB-S). As an alternative...
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Phthalate mixtures and insulin resistance: an item response theory approach to quantify exposure burden to phthalate mixtures
BackgroundMolar sums are often used to quantify total phthalate exposure, but they do not capture patterns of exposure to multiple phthalates.
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Psychometric evaluation of the Positive Mental Health (PMH) scale using item response theory
BackgroundThe investigation of patient-reported outcomes and psycho-oncological interventions mainly focuses on psychological distress or...
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Validation of the EQ-5D in Taiwan using item response theory
BackgroundOur study aims to provide validity evidence for the EuroQol five dimensions questionnaire (EQ-5D) in the National Health Interview Survey...
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Develo** a shortened version of the dementia knowledge assessment scale (DKAS-TC) with a sample in Taiwan: an item response theory approach
BackgroundThe 25-item Dementia Knowledge Assessment Scale (DKAS2) is a widely used tool for measuring knowledge of dementia. To increase the...
