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item response theory

Naomi A Newman-Beinart, Sam Norton, Dominic Dowling, Dimitri Gavriloff, Chiara Vari, John A Weinman, Emma L Godfrey
OBJECTIVES: There is no gold standard for measuring adherence to prescribed home exercise. Self-report diaries are commonly used however lack of standardisation, inaccurate recall and self-presentation bias limit their validity. A valid and reliable tool to assess exercise adherence behaviour is required. Consequently, this article reports the development and psychometric evaluation of the Exercise Adherence Rating Scale (EARS). DESIGN: Development of a questionnaire...
November 9, 2016: Physiotherapy
Yue Zhao
PURPOSE: In 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...
December 1, 2016: Quality of Life Research
Cornelia Oberhauser, Somnath Chatterji, Carla Sabariego, Alarcos Cieza
BACKGROUND: The following minimal set of valid health domains for tracking the health of both clinical and general populations has recently been proposed: 1) energy and drive functions, 2) emotional functions, 3) sensation of pain, 4) carrying out daily routine, 5) walking and moving around, and 6) remunerative employment. This study investigates whether these domains can be integrated into a sound psychometric measure to adequately assess, compare, and monitor the health of populations...
May 12, 2016: Population Health Metrics
Okan Bulut, Mark L Davison, Michael C Rodriguez
Subscores are of increasing interest in educational and psychological testing due to their diagnostic function for evaluating examinees' strengths and weaknesses within particular domains of knowledge. Previous studies about the utility of subscores have mostly focused on the overall reliability of individual subscores and ignored the fact that subscores should be distinct and have added value over the total score. This study introduces a profile reliability approach that partitions the overall subscore reliability into within-person and between-person subscore reliability...
November 29, 2016: Multivariate Behavioral Research
Etsuko Tadaka, Ayumi Kono, Eriko Ito, Yukiko Kanaya, Yuka Dai, Yuki Imamatsu, Waka Itoi
BACKGROUND: Among older people in developed countries, social isolation leading to solitary death has become a public health issue of vital importance. Such isolation could be prevented by monitoring at-risk individuals at the neighborhood level and by implementing supportive networks at the community level. However, a means of measuring community confidence in these measures has not been established. This study is aimed at developing the Community's Self-Efficacy Scale (CSES; Mimamori scale in Japanese) for community members preventing social isolation among older people...
November 28, 2016: BMC Public Health
Aja Louise Murray, Carrie Allison, Paula L Smith, Simon Baron-Cohen, Tom Booth, Bonnie Auyeung
Diagnostic bias is a concern in autism spectrum conditions (ASC) where prevalence and presentation differ by sex. To ensure that females with ASC are not under-identified, it is important that ASC screening tools do not systematically underestimate autistic traits in females relative to males. We evaluated whether the AQ-10, a brief screen for ASC recommended by the National Institute of Clinical Excellence in cases of suspected ASC, exhibits such a bias. Using an item response theory approach, we evaluated differential item functioning and differential test functioning...
November 28, 2016: Autism Research: Official Journal of the International Society for Autism Research
R Cordier, A Joosten, P Clavé, A Schindler, M Bülow, N Demir, S Serel Arslan, R Speyer
Early and reliable screening for oropharyngeal dysphagia (OD) symptoms in at-risk populations is important and a crucial first stage in effective OD management. The Eating Assessment Tool (EAT-10) is a commonly utilized screening and outcome measure. To date, studies using classic test theory methodologies report good psychometric properties, but the EAT-10 has not been evaluated using item response theory (e.g., Rasch analysis). The aim of this multisite study was to evaluate the internal consistency and structural validity and conduct a preliminary investigation of the cross-cultural validity of the EAT-10; floor and ceiling effects were also checked...
November 21, 2016: Dysphagia
Sarah I M Janus, Jeannette G van Manen, Maarten J IJzerman, Marloes Bisseling, Constance H C Drossaert, Sytse U Zuidema
BACKGROUND: Although physicians are responsible for writing the antipsychotic prescriptions for patients with dementia, the initiative is often taken by nurses or nursing assistants. To reduce antipsychotics uses, one needs to understand the reasons for nurses and nursing assistants to request them. This study gives an overview of the influencing factors for this request based on the Theory of Planned Behavior in which attitude, beliefs, and behavioral control is thought to influence the intention to request, which in turn affects the behavior to request for a prescription...
November 21, 2016: International Psychogeriatrics
Harleah G Buck, Karen Harkness, Muhammad Usman Ali, Sandra L Carroll, Jennifer Kryworuchko, Michael McGillion
Caregivers (CGs) contribute important assistance with heart failure (HF) self-care, including daily maintenance, symptom monitoring, and management. Until CGs' contributions to self-care can be quantified, it is impossible to characterize it, account for its impact on patient outcomes, or perform meaningful cost analyses. The purpose of this study was to conduct psychometric testing and item reduction on the recently developed 34-item Caregiver Contribution to Heart Failure Self-care (CACHS) instrument using classical and item response theory methods...
November 16, 2016: Research in Nursing & Health
Steven T Kalinowski, Mary J Leonard, Mark L Taper
We developed and validated the Conceptual Assessment of Natural Selection (CANS), a multiple-choice test designed to assess how well college students understand the central principles of natural selection. The expert panel that reviewed the CANS concluded its questions were relevant to natural selection and generally did a good job sampling the specific concepts they were intended to assess. Student interviews confirmed questions on the CANS provided accurate reflections of how students think about natural selection...
2016: CBE Life Sciences Education
Joshua D Cosman, J Toby Mordkoff, Shaun P Vecera
A dominant account of selective attention, perceptual load theory, proposes that when attentional resources are exhausted, task-irrelevant information receives little attention and goes unrecognized. However, the flanker effect-typically used to assay stimulus identification-requires an arbitrary mapping between a stimulus and a response. We looked for failures of flanker identification by using a more-sensitive measure that does not require arbitrary stimulus-response mappings: the correlated flankers effect...
December 2016: Journal of Experimental Psychology. Human Perception and Performance
Hung-Yu Huang
Respondents are often requested to provide a response to Likert-type or rating-scale items during the assessment of attitude, interest, and personality to measure a variety of latent traits. Extreme response style (ERS), which is defined as a consistent and systematic tendency of a person to locate on a limited number of available rating-scale options, may distort the test validity. Several latent trait models have been proposed to address ERS, but all these models have limitations. Mixture random-effect item response theory (IRT) models for ERS are developed in this study to simultaneously identify the mixtures of latent classes from different ERS levels and detect the possible differential functioning items that result from different latent mixtures...
2016: Frontiers in Psychology
Nathan T Carter, Dev K Dalal, Li Guan, Alexander C LoPilato, Scott A Withrow
Psychologists are increasingly positing theories of behavior that suggest psychological constructs are curvilinearly related to outcomes. However, results from empirical tests for such curvilinear relations have been mixed. We propose that correctly identifying the response process underlying responses to measures is important for the accuracy of these tests. Indeed, past research has indicated that item responses to many self-report measures follow an ideal point response process-wherein respondents agree only to items that reflect their own standing on the measured variable-as opposed to a dominance process, wherein stronger agreement, regardless of item content, is always indicative of higher standing on the construct...
November 7, 2016: Psychological Methods
Aaron J Kaat, Michael E Newcomb, Daniel T Ryan, Brian Mustanski
PURPOSE: Depression is a significant mental health concern. There are numerous depression questionnaires, several of which can be scored onto the Patient Reported Outcomes Measurement Information System (PROMIS(®)) Depression metric. This study expands the unified metric by linking depression subscales from the Adult Self-Report (ASR) and the Brief Symptom Inventory (BSI) to it. METHODS: An online sample of 2009 men who have sex with men (MSM) was recruited. Item factor analysis was used to evaluate the dimensionality of the aggregated measures and confirm the statistical assumptions for linking...
November 4, 2016: Quality of Life Research
Roger L Brown, Chidi N Obasi, Bruce Barrett
BACKGROUND: The purpose of this study is to use Rasch analysis to explore the validity of considering self-report scores from Wisconsin Upper Respiratory Symptom Survey (WURSS-21) as a single global illness severity domain. The WURSS-21 is a widely used questionnaire instrument that assesses symptom severity and functional impact of common cold and flu-like illness. METHODS: This study applies item response theory, specifically Rasch modeling, to investigate dimensional and measurement properties of the WURSS-21, and looks at invariance over time...
2016: Journal of Lung, Pulmonary & Respiratory Research
Waguih William IsHak, Wes Bonifay, Katherine Collison, Mark Reid, Haidy Youssef, Thomas Parisi, Robert M Cohen, Li Cai
BACKGROUND: Clinicians view "recovery" as the reduction in severity of symptoms over time, whereas patients view it as the restoration of premorbid functioning level and quality of life (QOL). The main purpose of this study is to incorporate patient-reported measures of functioning and QOL into the assessment of patient outcomes in MDD and to use this data to define recovery. METHOD: Using the STAR*D study of patients diagnosed with MDD, this present analysis grades patients' MDD severity, functioning level, and QOL at exit from each level of the study, as well as at follow-up...
October 15, 2016: Journal of Affective Disorders
Peter Hagell, Anette Alvariza, Albert Westergren, Kristofer Årestedt
CONTEXT: Previous studies have supported the psychometric properties of the 22-item Zarit Burden Interview (ZBI-22) scale among family caregivers of people with various disorders, including Parkinson´s disease (PD). However, its short-forms have not been psychometrically tested among PD family caregivers, and available psychometric analyses have not accounted for the ordinal nature of item-level data. OBJECTIVES: To assess the psychometric properties of the ZBI-22 and its short forms among family caregivers of people with PD, while taking account for the ordinal nature of data...
October 31, 2016: Journal of Pain and Symptom Management
Pushpa Narayanaswami
The selection of an appropriate outcome measure is crucial to the success of a clinical trial, in order to obtain accurate results, which, in turn, influence patient care and future research. Outcomes that can be directly measured are mortality/survival. More frequently, neurology clinical trials evaluate outcomes that cannot be directly measured, such as disability, cognitive function, or change in symptoms of the condition under study. These complex outcomes are abstract ideas or latent constructs and are measured using rating scales...
October 27, 2016: Neurotherapeutics: the Journal of the American Society for Experimental NeuroTherapeutics
Catherine Linney, Laurel Korologou-Linden, Anne Campbell
We examined maternal competition, an unexplored form of competition between women. Given women's high investment in offspring and mothers' key role in shaping their reproductive, social, and cultural success as adults, we might expect to see maternal competition between women as well as mate competition. Predictions about the effect of maternal characteristics (age, relationship status, educational background, number of children, investment in the mothering role) and child variables (age, sex) were drawn from evolutionary theory and sociological research...
October 29, 2016: Human Nature: An Interdisciplinary Biosocial Perspective
Natalia Lapinskaya, Uchechukwu Uzomah, Marina Bedny, Ellen Lau
Numerous theories have been proposed regarding the brain's organization and retrieval of lexical information. Neurophysiological dissociations in processing different word classes, particularly nouns and verbs, have been extensively documented, supporting the contribution of grammatical class to lexical organization. However, the contribution of semantic properties to these processing differences is still unresolved. We aim to isolate this contribution by comparing ERPs to verbs (e.g. wade), object nouns (e...
October 26, 2016: Neuropsychologia
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