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item response theory

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https://www.readbyqxmd.com/read/28439787/social-withdrawal-among-individuals-receiving-psychiatric-care-derivation-of-a-scale-using-routine-clinical-assessment-data-to-support-screening-and-outcome-measurement
#1
Sebastian Rios, Christopher M Perlman
Social withdrawal is a symptom experienced by individuals with an array of mental health conditions, particularly those with schizophrenia and mood disorders. Assessments of social withdrawal are often lengthy and may not be routinely integrated within the comprehensive clinical assessment of the individual. This study utilized item response and classical test theory methods to derive a Social Withdrawal Scale (SWS) using items embedded within a routine clinical assessment, the RAI-Mental Health (RAI-MH). Using data from 60,571 inpatients in Ontario, Canada, a common factor analysis identified seven items from the RAI-MH that measure social withdrawal...
April 24, 2017: Journal of Behavioral Health Services & Research
https://www.readbyqxmd.com/read/28438497/theory-of-planned-behavior-constructs-associated-with-nurses-pain-assessment-and-pro-re-nata-prn-opioid-analgesic-administration-a-cross-sectional-study
#2
Phichpraorn Youngcharoen, Catherine Vincent, Chang G Park
Little theory-based research has been performed to better understand nurses' perceptions of pain management. Framed by the theory of planned behavior, the aims of the study were to describe nurses' beliefs (behavioral, normative, and control) about pain management for hospitalized elderly patients with postoperative pain; to present an item analysis for beliefs, attitudes, perceived norms, perceived behavioral control, intentions, and behaviors (measured in case study vignettes) for nurses (a) with different durations of nursing experience, (b) working in university, public health, and military hospitals, and (c) who either had or had not received pain management training in the past six months; and to compare differences in the constructs across these three groups...
April 21, 2017: Pain Management Nursing: Official Journal of the American Society of Pain Management Nurses
https://www.readbyqxmd.com/read/28438248/program-factor-at-10-origins-development-and-future-directions
#3
Pere J Ferrando, Urbano Lorenzo-Seva
BACKGROUND: We aim to provide a conceptual view of the origins, development and future directions of FACTOR, a popular free program for fitting the factor analysis (FA) model. METHOD: The study is organized into three parts. In the first part we discuss FACTOR in its initial period (2006-2012) as a traditional FA program with many new and cutting-edge features. The second part discusses the present period (2013-2016) in which FACTOR has developed into a comprehensive program embedded in the framework of structural equation modelling and item response theory...
May 2017: Psicothema
https://www.readbyqxmd.com/read/28434819/the-functional-test-of-the-hemiparetic-upper-extremity-a-rasch-analysis-with-theoretical-implications
#4
Veronica T Rowe, Carolee J Winstein, Steven L Wolf, Michelle L Woodbury
OBJECTIVE: To investigate the measurement properties of the Functional Test of the Hemiparetic Upper Extremity (FTHUE) and examine how its score may or may not inform design of a rehabilitation program. DESIGN: The FTHUE was recently used in the Interdisciplinary Comprehensive Arm Rehabilitation Evaluation Stroke (ICARE) Randomized Clinical Trial (RCT). This circumstance provided the opportunity to examine the psychometric properties of the FTHUE as it pertains to contemporary post-stroke rehabilitation and recovery models...
April 20, 2017: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/28431587/psychometric-properties-of-the-sdm-q-9-questionnaire-for-shared-decision-making-in-multiple-sclerosis-item-response-theory-modelling-and-confirmatory-factor-analysis
#5
Javier Ballesteros, Ester Moral, Luis Brieva, Elena Ruiz-Beato, Daniel Prefasi, Jorge Maurino
BACKGROUND: Shared decision-making is a cornerstone of patient-centred care. The 9-item Shared Decision-Making Questionnaire (SDM-Q-9) is a brief self-assessment tool for measuring patients' perceived level of involvement in decision-making related to their own treatment and care. Information related to the psychometric properties of the SDM-Q-9 for multiple sclerosis (MS) patients is limited. The objective of this study was to assess the performance of the items composing the SDM-Q-9 and its dimensional structure in patients with relapsing-remitting MS...
April 22, 2017: Health and Quality of Life Outcomes
https://www.readbyqxmd.com/read/28427337/treatment-seeking-behaviour-in-low-and-middle-income-countries-estimated-using-a-bayesian-model
#6
Victor A Alegana, Jim Wright, Carla Pezzulo, Andrew J Tatem, Peter M Atkinson
BACKGROUND: Seeking treatment in formal healthcare for uncomplicated infections is vital to combating disease in low- and middle-income countries (LMICs). Healthcare treatment-seeking behaviour varies within and between communities and is modified by socio-economic, demographic, and physical factors. As a result, it remains a challenge to quantify healthcare treatment-seeking behaviour using a metric that is comparable across communities. Here, we present an application for transforming individual categorical responses (actions related to fever) to a continuous probabilistic estimate of fever treatment for one country in Sub-Saharan Africa (SSA)...
April 20, 2017: BMC Medical Research Methodology
https://www.readbyqxmd.com/read/28426237/on-the-complexity-of-item-response-theory-models
#7
Wes Bonifay, Li Cai
Complexity in item response theory (IRT) has traditionally been quantified by simply counting the number of freely estimated parameters in the model. However, complexity is also contingent upon the functional form of the model. We examined four popular IRT models-exploratory factor analytic, bifactor, DINA, and DINO-with different functional forms but the same number of free parameters. In comparison, a simpler (unidimensional 3PL) model was specified such that it had 1 more parameter than the previous models...
April 20, 2017: Multivariate Behavioral Research
https://www.readbyqxmd.com/read/28421011/practical-consequences-of-item-response-theory-model-misfit-in-the-context-of-test-equating-with-mixed-format-test-data
#8
Yue Zhao, Ronald K Hambleton
In item response theory (IRT) models, assessing model-data fit is an essential step in IRT calibration. While no general agreement has ever been reached on the best methods or approaches to use for detecting misfit, perhaps the more important comment based upon the research findings is that rarely does the research evaluate IRT misfit by focusing on the practical consequences of misfit. The study investigated the practical consequences of IRT model misfit in examining the equating performance and the classification of examinees into performance categories in a simulation study that mimics a typical large-scale statewide assessment program with mixed-format test data...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28411732/design-and-validation-of-an-aircraft-seat-comfort-scale-using-item-response-theory
#9
Lizandra da Silva Menegon, Silvana Ligia Vincenzi, Dalton Francisco de Andrade, Pedro Alberto Barbetta, Eugenio Andrés Díaz Merino, Peter Vink
This article aims to evaluate the psychometric properties of a scale that measures aircraft seat comfort. Factor analysis was used to study data variances. Psychometric quality was checked by using Item Response Theory. The sample consisted of 1500 passengers who completed a questionnaire at a Brazilian airport. Full information factor analysis showed the presence of one dominant factor explaining 34% of data variance. The scale generated covered all levels of comfort data, from 'no comfort' to 'maximum comfort'...
July 2017: Applied Ergonomics
https://www.readbyqxmd.com/read/28406671/a-comparison-of-self-report-measures-of-psychopathy-among-nonforensic-samples-using-item-response-theory-analyses
#10
Siny Tsang, Randall T Salekin, C Adam Coffey, Jennifer Cox
This study investigated how well components of the psychopathy trait are measured among college students with the Levenson Self-Report Psychopathy Scale (LSRP), the Personality Assessment Inventory-Antisocial Features Scale (PAI ANT), the Psychopathic Personality Inventory-Short Form (PPI-SF), and the Self-Report Psychopathy Scale-II (SRP-II). Using Samejima (1969)'s graded response model (GRM), the subscales were found to vary in their ability to measure the corresponding latent traits. The LSRP primary psychopathy factor is more precise in measuring the latent trait than the secondary psychopathy factor...
April 13, 2017: Psychological Assessment
https://www.readbyqxmd.com/read/28402474/the-nursing-home-physical-performance-test-a-secondary-data-analysis-of-women-in-long-term-care-using-item-response-theory
#11
Subashan Perera, David A Nace, Neil M Resnick, Susan L Greenspan
Background and Objectives: The Nursing Home Physical Performance Test (NHPPT) was developed to measure function among nursing home residents using sit-to-stand, scooping applesauce, face washing, dialing phone, putting on sweater, and ambulating tasks. Using item response theory, we explore its measurement characteristics at item level and opportunities for improvements. Research Design and Methods: We used data from long-term care women. We fitted a graded response model, estimated parameters, and constructed probability and information curves...
April 11, 2017: Gerontologist
https://www.readbyqxmd.com/read/28400356/a-psychometric-analysis-of-the-italian-version-of-the-ehealth-literacy-scale-using-item-response-and-classical-test-theory-methods
#12
Nicola Diviani, Alexandra Lelia Dima, Peter Johannes Schulz
BACKGROUND: The eHealth Literacy Scale (eHEALS) is a tool to assess consumers' comfort and skills in using information technologies for health. Although evidence exists of reliability and construct validity of the scale, less agreement exists on structural validity. OBJECTIVE: The aim of this study was to validate the Italian version of the eHealth Literacy Scale (I-eHEALS) in a community sample with a focus on its structural validity, by applying psychometric techniques that account for item difficulty...
April 11, 2017: Journal of Medical Internet Research
https://www.readbyqxmd.com/read/28397085/simulation-extrapolation-with-latent-heteroskedastic-error-variance
#13
J R Lockwood, Daniel F McCaffrey
This article considers the application of the simulation-extrapolation (SIMEX) method for measurement error correction when the error variance is a function of the latent variable being measured. Heteroskedasticity of this form arises in educational and psychological applications with ability estimates from item response theory models. We conclude that there is no simple solution for applying SIMEX that generally will yield consistent estimators in this setting. However, we demonstrate that several approximate SIMEX methods can provide useful estimators, leading to recommendations for analysts dealing with this form of error in settings where SIMEX may be the most practical option...
March 29, 2017: Psychometrika
https://www.readbyqxmd.com/read/28395704/evaluating-the-performance-of-a-single-item-global-estimate-of-missed-nursing-care
#14
Patti Hamilton, Eileen Willis, Terry Jones, Rhonda McKelvie, Ian Blackman, Luisa Toffoli, Clare Harvey
BACKGROUND AND PURPOSE: Current measures of missed nursing care employ inventories of tasks which are rated for the frequency with which each is missed. These lists have shortcomings for research and clinical evaluation. There is a need for measures with less response burden, wider generalizability, and greater sensitivity and specificity for identifying poor quality care. METHODS: We tested a single-item, global, measure using data from a large study of missed care in Australia...
April 1, 2017: Journal of Nursing Measurement
https://www.readbyqxmd.com/read/28394851/development-and-validation-of-the-self-reported-promis-pediatric-pain-behavior-item-bank-and-short-form-scale
#15
Natoshia R Cunningham, Susmita Kashikar-Zuck, Constance Mara, Kenneth R Goldschneider, Dennis A Revicki, Carlton Dampier, David D Sherry, Lori Crosby, Adam Carle, Karon F Cook, Esi M Morgan
Pain behaviors are important indicators of functioning in chronic pain; however, no self-reported pain behavior instrument has been developed for pediatric populations. The purpose of this study was to create a brief pediatric measure of patient-reported pain behaviors as part of the Patient- Reported Outcome Measurement Information System (PROMIS). A pool of 47 candidate items for this measure had been previously developed through qualitative research. In this study, youth with chronic pain associated with juvenile fibromyalgia (JFM), juvenile idiopathic arthritis (JIA), or sickle cell disease (SCD) (ages 8 to 18 years) from three pediatric centers completed all 47 candidate items for development of the pain behavior item bank along with established measures of pain interference, depressive symptoms, fatigue, average pain intensity, and pain catastrophizing...
April 5, 2017: Pain
https://www.readbyqxmd.com/read/28391093/an-item-response-theory-approach-to-safety-climate-measurement-the-liberty-mutual-safety-climate-short-scales
#16
Yueng-Hsiang Huang, Jin Lee, Zhuo Chen, MacKenna Perry, Janelle H Cheung, Mo Wang
Zohar and Luria's (2005) safety climate (SC) scale, measuring organization- and group- level SC each with 16 items, is widely used in research and practice. To improve the utility of the SC scale, we shortened the original full-length SC scales. Item response theory (IRT) analysis was conducted using a sample of 29,179 frontline workers from various industries. Based on graded response models, we shortened the original scales in two ways: (1) selecting items with above-average discriminating ability (i.e. offering more than 6...
April 6, 2017: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/28390145/non-ignorable-missingness-item-response-theory-models-for-choice-effects-in-examinee-selected-items
#17
Chen-Wei Liu, Wen-Chung Wang
Examinee-selected item (ESI) design, in which examinees are required to respond to a fixed number of items in a given set, always yields incomplete data (i.e., when only the selected items are answered, data are missing for the others) that are likely non-ignorable in likelihood inference. Standard item response theory (IRT) models become infeasible when ESI data are missing not at random (MNAR). To solve this problem, the authors propose a two-dimensional IRT model that posits one unidimensional IRT model for observed data and another for nominal selection patterns...
April 8, 2017: British Journal of Mathematical and Statistical Psychology
https://www.readbyqxmd.com/read/28383949/conditional-reliability-coefficients-for-test-scores
#18
W Alan Nicewander
The most widely used, general index of measurement precision for psychological and educational test scores is the reliability coefficient-a ratio of true variance for a test score to the true-plus-error variance of the score. In item response theory (IRT) models for test scores, the information function is the central, conditional index of measurement precision. In this inquiry, conditional reliability coefficients for a variety of score types are derived as simple transformations of information functions. It is shown, for example, that the conditional reliability coefficient for an ordinary, number-correct score, X, is equal to, ρ(X,X'|θ)=I(X,θ)/[I(X,θ)+1] Where: θ is a latent variable measured by an observed test score, X; p(X, X'|θ) is the conditional reliability of X at a fixed value of θ; and I(X, θ) is the score information function...
April 6, 2017: Psychological Methods
https://www.readbyqxmd.com/read/28379556/fusing-biodiversity-metrics-into-investigations-of-daily-life-illustrations-and-recommendations-with-emodiversity
#19
Lizbeth Benson, Nilam Ram, David M Almeida, Alex J Zautra, Anthony D Ong
Objectives: Functionalist emotion and ecological systems theories suggest emodiversity-the variety and relative abundance of individuals' emotion experiences-is beneficial for psychological and physical health and may change with age. This paper examines and provides recommendations for operationalization of diversity-type intraindividual variability (IIV) constructs using intensive longitudinal data, and demonstrates the utility of emodiversity by examining its links to physical health moderated by mean levels of emotion and age...
March 30, 2017: Journals of Gerontology. Series B, Psychological Sciences and Social Sciences
https://www.readbyqxmd.com/read/28376240/the-development-of-the-physical-fitness-construct-across-childhood
#20
Till Utesch, Dennis Dreiskämper, Bernd Strauss, Roland Naul
The measurement of physical fitness (PF) is an important factor from many different perspectives. PF is a determinant of healthy child development as it is related to several health outcomes. However, existing taxonomies of the construct and frequently used fitness assessments vary concerning their theoretical assumptions and practical implications. From a theoretical perspective, the construct of physical fitness covers a variety of motor domains, such as cardiovascular endurance, strength, coordination, or flexibility (e...
April 4, 2017: Scandinavian Journal of Medicine & Science in Sports
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