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item response theory

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https://www.readbyqxmd.com/read/28087450/item-response-theory-analysis-to-evaluate-reliability-and-minimal-clinically-important-change-of-the-roland-morris-disability-questionnaire-in-patients-with-severe-disability-due-to-back-pain-from-vertebral-compression-fractures
#1
Minji K Lee, Kathleen J Yost, Jennifer S McDonald, Ryne W Dougherty, Roanna L Vine, David F Kallmes
BACKGROUND CONTEXT: The majority of validation done on the Roland-Morris Disability Questionnaire (RMDQ) has been in patients with mild or moderate low disability. There is paucity of research focusing on the psychometric quality of the RMDQ in patients with severe disability. PURPOSE: To evaluate the psychometric quality of the RMDQ in patients with severe disability. STUDY DESIGN/SETTING: Observational clinical study SAMPLE: The sample consisted of 214 patients with painful vertebral compression fractures who underwent vertebroplasty or kyphoplasty...
January 10, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28086767/quantifying-traditional-chinese-medicine-patterns-using-modern-test-theory-an-example-of-functional-constipation
#2
Minxue Shen, Yuanwu Cui, Ming Hu, Linyong Xu
BACKGROUND: The study aimed to validate a scale to assess the severity of "Yin deficiency, intestine heat" pattern of functional constipation based on the modern test theory. METHODS: Pooled longitudinal data of 237 patients with "Yin deficiency, intestine heat" pattern of constipation from a prospective cohort study were used to validate the scale. Exploratory factor analysis was used to examine the common factors of items. A multidimensional item response model was used to assess the scale with the presence of multidimensionality...
January 13, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28080093/psychometric-properties-of-the-short-inventory-of-problems-sip-with-adjudicated-dui-intervention-participants
#3
David T Morse, Angela A Robertson
We used responses of two large samples of court-ordered participants from a statewide alcohol/driving safety program to investigate factor structure, score reliability, and criterion-related validity of the Short Inventory of Problems (SIP). Exploratory and confirmatory factor analyses, using both item-level and subscore-level data, support a one-factor structure for the SIP. Internal consistency score reliability estimates were consistent across samples and high enough to warrant use for making decisions about individuals...
January 12, 2017: Psychology of Addictive Behaviors: Journal of the Society of Psychologists in Addictive Behaviors
https://www.readbyqxmd.com/read/28077415/international-multiphase-mixed-methods-study-protocol-to-develop-a-cross-cultural-patient-reported-outcome-instrument-for-children-and-young-adults-with-cleft-lip-and-or-palate-cleft-q
#4
Karen W Y Wong Riff, Elena Tsangaris, Tim Goodacre, Christopher R Forrest, Andrea L Pusic, Stefan J Cano, Anne F Klassen
INTRODUCTION: Patient-reported outcome (PRO) instruments should be developed according to rigorous guidelines in order to provide clinically meaningful, scientifically sound measurement. Understanding the methodology behind instrument development informs the selection of the most appropriate tool. This mixed methods protocol describes the development of an internationally applicable PRO instrument, the CLEFT-Q, for evaluating outcomes of treatment for cleft lip and/or palate (CL/P). METHODS AND ANALYSIS: The study includes three main phases that occur iteratively and interactively...
January 11, 2017: BMJ Open
https://www.readbyqxmd.com/read/28075699/outcome-and-impact-evaluation-of-a-transgender-health-course-for-health-profession-students
#5
Hannan M Braun, Ilana R Garcia-Grossman, Andrea Quiñones-Rivera, Madeline B Deutsch
PURPOSE: Being transgender is associated with numerous health disparities, and transgender individuals face mistreatment and discrimination in healthcare settings. At the same time, healthcare professionals report inadequate preparation to care for transgender people, and patients often have to teach their own medical providers about transgender care. Our study aimed to evaluate the impact of an elective course for health profession students in transgender health that was implemented to address these gaps in provider knowledge...
January 11, 2017: LGBT Health
https://www.readbyqxmd.com/read/28068901/development-of-a-microsoft-excel-tool-for-one-parameter-rasch-model-of-continuous-items-an-application-to-a-safety-attitude-survey
#6
Tsair-Wei Chien, Yang Shao, Shu-Chun Kuo
BACKGROUND: Many continuous item responses (CIRs) are encountered in healthcare settings, but no one uses item response theory's (IRT) probabilistic modeling to present graphical presentations for interpreting CIR results. A computer module that is programmed to deal with CIRs is required. To present a computer module, validate it, and verify its usefulness in dealing with CIR data, and then to apply the model to real healthcare data in order to show how the CIR that can be applied to healthcare settings with an example regarding a safety attitude survey...
January 10, 2017: BMC Medical Research Methodology
https://www.readbyqxmd.com/read/28067415/the-measurement-of-adolescent-alcohol-problems-via-item-response-theory-and-their-15-year-prospective-associations-with-alcohol-and-other-psychiatric-disorders
#7
Michael Windle, Rebecca C Windle
BACKGROUND: A limited number of measures exist to assess alcohol problems during adolescence. Item response theory modeling was used to scale a measure of adolescent alcohol problems, including drinking and driving, and then related to alcohol and other psychiatric disorders that occurred over a 15-year period. METHODS: High school students (N = 832) completed the 13-item Alcohol Problems Index (API) at age 18 years as part of a long-term longitudinal study of predictors of alcohol use and alcohol disorders...
January 9, 2017: Alcoholism, Clinical and Experimental Research
https://www.readbyqxmd.com/read/28062469/development-and-validation-of-brief-scales-to-measure-emotional-and-behavioural-problems-among-chinese-adolescents
#8
Minxue Shen, Ming Hu, Zhenqiu Sun
OBJECTIVES: To develop and validate brief scales to measure common emotional and behavioural problems among adolescents in the examination-oriented education system and collectivistic culture of China. SETTING: Middle schools in Hunan province. PARTICIPANTS: 5442 middle school students aged 11-19 years were sampled. 4727 valid questionnaires were collected and used for validation of the scales. The final sample included 2408 boys and 2319 girls...
January 6, 2017: BMJ Open
https://www.readbyqxmd.com/read/28059618/smokers-with-ms-have-greater-decrements-in-quality-of-life-and-disability-than-non-smokers
#9
Farren Bs Briggs, Douglas D Gunzler, Daniel Ontaneda, Ruth Ann Marrie
BACKGROUND: Tobacco smoke plays a pathogenic role in multiple sclerosis (MS) and may accelerate disease progression, yet, some people with MS continue to smoke after disease onset. The average smoker reports diminished health-related quality of life (HRQOL) across many populations. OBJECTIVES: To describe the relationships between smoking status and HRQOL, disease activity, and global disability in a US population with MS. METHODS: We compared smokers to non-smokers in 950 responders to the Spring 2014 update survey completed by North American Research Committee on Multiple Sclerosis (NARCOMS) registry participants...
January 1, 2017: Multiple Sclerosis: Clinical and Laboratory Research
https://www.readbyqxmd.com/read/28057192/average-vs-item-response-theory-scores-an-illustration-using-neighbourhood-measures-in-relation-to-physical-activity-in-adults-with-arthritis
#10
T J Mielenz, L F Callahan, M C Edwards
OBJECTIVES: Our study had two main objectives: 1) to determine whether perceived neighbourhood physical features are associated with physical activity levels in adults with arthritis; and 2) to determine whether the conclusions are more precise when item response theory (IRT) scores are used instead of average scores for the perceived neighbourhood physical features scales. METHODS: Information on health outcomes, neighbourhood characteristics, and physical activity levels were collected using a telephone survey of 937 participants with self-reported arthritis...
January 2017: Public Health
https://www.readbyqxmd.com/read/28032375/evaluating-psychological-distress-data
#11
James McIntosh
Kessler k6 psychological distress scores are analyzed using a count model and item response theory (IRT) models are applied to the items which produce the k6 score and generate an alternative distress score, θ(*) . Other ways of utilizing the constituent items are also examined. The data used in the analysis comes from the 2014 National Survey of Drug Use and Health. Three important results emerge. First, θ(*) and k6 are not highly correlated and their distributions are quite different. The k6 score gives a much more favourable picture of mental health than θ(*) ...
December 28, 2016: International Journal of Methods in Psychiatric Research
https://www.readbyqxmd.com/read/28028428/item-response-theory-applied-to-factors-affecting-the-patient-journey-towards-hearing-rehabilitation
#12
Michelene Chenault, Martijn Berger, Bernd Kremer, Lucien Anteunis
To develop a tool for use in hearing screening and to evaluate the patient journey towards hearing rehabilitation, responses to the hearing aid rehabilitation questionnaire scales aid stigma, pressure, and aid unwanted addressing respectively hearing aid stigma, experienced pressure from others; perceived hearing aid benefit were evaluated with item response theory. The sample was comprised of 212 persons aged 55 years or more; 63 were hearing aid users, 64 with and 85 persons without hearing impairment according to guidelines for hearing aid reimbursement in the Netherlands...
August 23, 2016: Audiology Research
https://www.readbyqxmd.com/read/28027051/accounting-for-local-dependence-with-the-rasch-model-the-paradox-of-information-increase
#13
David Andrich
Test theories imply statistical, local independence. Where local independence is violated, models of modern test theory that account for it have been proposed. One violation of local independence occurs when the response to one item governs the response to a subsequent item. Expanding on a formulation of this kind of violation between two items in the dichotomous Rasch model, this paper derives three related implications. First, it formalises how the polytomous Rasch model for an item constituted by summing the scores of the dependent items absorbs the dependence in its threshold structure...
2016: Journal of Applied Measurement
https://www.readbyqxmd.com/read/28013571/short-montreal-cognitive-assessment
#14
A J Larner
The diagnostic accuracy of the short Montreal Cognitive Assessment (s-MoCA), a cognitive screening instrument recently derived by item response theory and computerized adaptive testing from the original MoCA, for the diagnosis of dementia and mild cognitive impairment (MCI) was assessed in 2 patient cohorts referred to a dedicated memory clinic in order to examine the validity and reproducibility of s-MoCA. Diagnosis used standard clinical diagnostic criteria for dementia and MCI as reference standard (prevalence of cognitive impairment = 0...
January 1, 2016: Journal of Geriatric Psychiatry and Neurology
https://www.readbyqxmd.com/read/28010039/the-emotion-regulation-questionnaire-in-women-with-cancer-a-psychometric-evaluation-and-an-item-response-theory-analysis
#15
Tânia Brandão, Marc S Schulz, James J Gross, Paula Mena Matos
OBJECTIVE: Emotion regulation is thought to play an important role in adaptation to cancer. However, the Emotion Regulation Questionnaire (ERQ), a widely-used instrument to assess emotion regulation, has not yet been validated in this context. This study addresses this gap by examining the psychometric properties of the ERQ in a sample of Portuguese women with cancer. METHODS: The ERQ was administered to 204 women with cancer (M age = 48.89 years, SD = 7...
December 23, 2016: Psycho-oncology
https://www.readbyqxmd.com/read/28009585/evaluation-of-the-bifactor-nominal-response-model-analysis-of-a-health-efficacy-measure
#16
Kathleen Suzanne Johnson Preston, Zexuan Han
The bifactor nominal response item response theory (IRT) model, proposed by Cai, Yang and Hansen (2011), provides an extension of Bock's (1972, 1997) unidimensional nominal response model to multidimensional IRT. This model has not been utilized in any published studies since its original development. In this study, the model was applied to data from a sample of college students (N = 799) to evaluate the psychometric properties of a health efficacy measure. The nominal response model has the unique capability to estimate the functioning of each single response category, and higher response categories were found to have better functioning in this study...
2016: Journal of Applied Measurement
https://www.readbyqxmd.com/read/28005243/improving-measures-of-work-related-physical-functioning
#17
Christine M McDonough, Pengsheng Ni, Kara Peterik, Elizabeth E Marfeo, Molly E Marino, Mark Meterko, Elizabeth K Rasch, Diane E Brandt, Alan M Jette, Leighton Chan
PURPOSE: To expand content of the physical function domain of the Work Disability Functional Assessment Battery (WD-FAB), developed for the US Social Security Administration's (SSA) disability determination process. METHODS: Newly developed questions were administered to 3532 recent SSA applicants for work disability benefits and 2025 US adults. Factor analyses and item response theory (IRT) methods were used to calibrate and link the new items to the existing WD-FAB, and computer-adaptive test simulations were conducted...
December 22, 2016: Quality of Life Research
https://www.readbyqxmd.com/read/28004039/building-an-evaluation-scale-using-item-response-theory
#18
John P Lalor, Hao Wu, Hong Yu
Evaluation of NLP methods requires testing against a previously vetted gold-standard test set and reporting standard metrics (accuracy/precision/recall/F1). The current assumption is that all items in a given test set are equal with regards to difficulty and discriminating power. We propose Item Response Theory (IRT) from psychometrics as an alternative means for gold-standard test-set generation and NLP system evaluation. IRT is able to describe characteristics of individual items - their difficulty and discriminating power - and can account for these characteristics in its estimation of human intelligence or ability for an NLP task...
November 2016: Proc Conf Empir Methods Nat Lang Process
https://www.readbyqxmd.com/read/27998293/global-pharmaceutical-regulation-the-challenge-of-integration-for-developing-states
#19
Anthony Pezzola, Cassandra M Sweet
BACKGROUND: This paper has set out to map the state of pharmaceutical regulation in the developing world through the construction of cross-national indices drawing from World Health Organization data. The last two decades have been characterized by deep changes for the pharmaceutical sector, including the complete transformation of intellectual property systems at the behest of the World Trade Organization and the consolidation of global active ingredient suppliers in China and India...
December 20, 2016: Globalization and Health
https://www.readbyqxmd.com/read/27993229/development-of-two-dimensional-measures-of-restricted-and-repetitive-behavior-in-parents-and-children
#20
David W Evans, Mirko Uljarević, Laina G Lusk, Eva Loth, Thomas Frazier
OBJECTIVE: Restricted and repetitive behaviors (RRBs) are a heterogeneous set of behaviors common across a wide range of neurodevelopmental disorders (NDDs) and neuropsychiatric disorders (NPDs) that extend well into the general population. This study introduces 2 dimensional measurements of RRBs for use in typical and clinical populations from infancy to adulthood. METHOD: The Childhood Routines Inventory-Revised (CRI-R) and the Adult Routines Inventory (ARI) were created and administered online to a nationally representative cohort of 3,108 parents with 3,032 children (range 12 months to 17 years 11 months)...
January 2017: Journal of the American Academy of Child and Adolescent Psychiatry
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