Results 71 to 80 of about 7,588,198 (206)

The Contact Lens Impact on Quality of Life (CLIQ) questionnaire: development and validation [PDF]

, 2006
NoPURPOSE. To develop and validate a questionnaire for the measurement of the impact of contact lenses on quality of life (QoL): The Contact Lens Impact on Quality of Life (CLIQ) Questionnaire. METHODS. The questionnaire was developed and validated using
Garamendi, Estibaliz, Pesudovs, Konrad, Elliott, David, David B. Elliott, Elliott, David B, Konrad Pesudovs, Estibaliz Garamendi   +6 more
core   +1 more source

Differential item functioning detection across multiple groups

British Journal of Mathematical and Statistical Psychology, EarlyView.
Abstract Differential item functioning (DIF) can be investigated by estimating item response theory (IRT) parameters separately for different respondent groups, thus allowing for the detection of discrepancies in parameter estimates across groups. However, before comparing the estimates, it is necessary to convert them to a common metric due to the ...
Michela Battauz
wiley   +1 more source

Psychometric Evaluation of the Patient‐Experienced Continuity of Care Questionnaire (PECQ) Using Rasch Model

Health Expectations
Background The Patient‐Experienced Continuity of care Questionnaire (PECQ) was developed to measure continuity of care (CoC) in primary care, but has only been evaluated in accordance with classical test theory, which has some weaknesses compared with ...
Linda Ljungholm, Mirjam Ekstedt, Cecilia Fagerström, Ingrid Djukanovic, Kristofer Årestedt   +4 more
doaj   +1 more source

Improving the measurement of QALYs in dementia: developing patient- and carer-reported health state classification systems using Rasch analysis [PDF]

Objectives: Cost-utility analysis is increasingly used to inform resource allocation. This requires a means of valuing health states before and after intervention. Although generic measures are typically used to generate values, these do not perform well
Knapp, M, Lamping, DL, Loftus, V, Howard, RJ, Mulhern, B, Brazier, JE, Smith, SC, Rowen, D, Young, Tracey A., Banerjee, S   +9 more
core  

Latent Poisson count models for action count data from technology‐enhanced assessments

British Journal of Mathematical and Statistical Psychology, EarlyView.
Abstract Recent advances in computerized assessments have enabled the use of innovative item formats (e.g., drag‐and‐drop, scenario‐based), necessitating a flexible model that can capture systematic influence of item types on action counts. In this study, we present a refinement scheme that can explicitly model common features of items and allows ...
Gregory Arbet, Hyeon‐Ah Kang
wiley   +1 more source

Concerns with Patient Reported Outcome Measurement and Value Claims for Therapy Response: The Case of Mavacamten and Symptomatic Hypertrophic Cardiomyopathy (SHCM)

INNOVATIONS in Pharmacy, 2022
Fundamental measurement is the basis for a rational assessment of patient reported outcome (PRO) value claims; both as response to therapy and the submission of credible and evaluable value claims to formulary committees and other health system decision
Paul C Langley
doaj  

From whole number to real number: Applying Rasch measurement to investigate threshold concepts

Pythagoras, 2009
The developments in mathematics that take place in Grades 7 to 9 constitute critical nodes in a learner’s scholing. One of the major transitions to be made is from whole numbers to real numbers, which involves theunderstanding of ...
Caroline Long
doaj   +1 more source

On the asymmetry, complexity and predicted data patterns of nontraditional item response theory models

British Journal of Mathematical and Statistical Psychology, EarlyView.
Abstract Traditional item response theory (IRT) models involve symmetric response probability functions, but a developing area of research has focused on asymmetric alternatives. To date, these studies have focused primarily on introducing new asymmetric models, detailing their mathematical formulations, explaining how to interpret their item ...
Hyejin Shim, Wes Bonifay
wiley   +1 more source

Measurement properties of the Swedish version of the anterior cruciate ligament return to sport after injury scale (ACL‐RSI): A Rasch analysis

Journal of Experimental Orthopaedics
Purpose This study aimed to investigate the measurement properties, according to the Rasch Measurement Theory, of the anterior cruciate ligament return to sport after injury scale (ACL‐RSI) in patients treated with ACL reconstruction in Sweden.
Ramana Piussi, Sara Alenius, Kate E. Webster, Roland Thomeé, Albert Westergren, Peter Hagell, Eric Hamrin Senorski   +6 more
doaj   +1 more source

A new method for detecting differential item functioning in the Rasch model [PDF]

Differential item functioning (DIF) can lead to an unfair advantage or disadvantage for certain subgroups in educational and psychological testing. Therefore, a variety of statistical methods has been suggested for detecting DIF in the Rasch model.
Carolin Strobl, Achim Zeileis, Julia Kopf   +2 more
core