Results 11 to 20 of about 6,533 (127)

C-Test construct validity: Evidence from nonparametric item response theory

Language Testing in Asia
C-Test is a gap-filling test designed to measure first and second language proficiency. Over the past four decades, researchers have shown the fit of C-Test data to parametric item response theory (IRT) models, but no study so far has shown the fit of C ...
Roya Shoahosseini, Purya Baghaei, Hossein Khodabakhshzadeh, Hamid Ashraf   +3 more
doaj   +2 more sources

A Comparison of Classical Test Theory and Nonparametric Item Response Theory with Respect to the Effects of Testees’ Characteristics on Item Characteristics and vice versa [PDF]

فصلنامه نوآوری‌های آموزشی, 2006
This study aimed at comparing Classical Test Theory and Nonparametric Item Response Theory with respect to the effect of testees’ characteristics on item characteristics and vice versa. The research method was of the applied, descriptive type.
Ali delavar, Ali Moghaddamzadeh, Seyedeh Tayebeh Motiee Langroudi   +2 more
doaj   +1 more source

Nonparametric Item Response Theory Using Stata [PDF]

The Stata Journal: Promoting communications on statistics and Stata, 2011
Item response theory is a set of models and methods allowing for the analysis of binary or ordinal variables (items) that are influenced by a latent variable or latent trait—that is, a variable that cannot be measured directly. The theory was originally developed in educational assessment but has many other applications in clinical research, ecology ...
Jean-Benoit Hardouin, Angélique Bonnaud-Antignac, Véronique Sébille   +2 more
openaire   +2 more sources

Analyzing Psychopathology Items: A Case for Nonparametric Item Response Theory Modeling. [PDF]

Psychological Methods, 2004
The authors discuss the applicability of nonparametric item response theory (IRT) models to the construction and psychometric analysis of personality and psychopathology scales, and they contrast these models with parametric IRT models. They describe the fit of nonparametric IRT to the Depression content scale of the Minnesota Multiphasic Personality ...
Meijer, R.R., Baneke, J.J.
openaire   +3 more sources

Transcultural adaptation and psychometric validation of the Thai-Brief Resilient Coping Scale: a cross-sectional study during the coronavirus disease 2019 pandemic in Thailand

Scientific Reports, 2022
This study aimed to examine the transcultural adaptation, construct validity, and psychometric properties of the Thai-Brief Resilient Coping Scale (BRCS) among the general population and college students through the coronavirus disease 2019 (COVID-19 ...
Surapon Nochaiwong, Chidchanok Ruengorn, Ratanaporn Awiphan, Chabaphai Phosuya, Yongyuth Ruanta, Penkarn Kanjanarat, Nahathai Wongpakaran, Tinakon Wongpakaran, Kednapa Thavorn   +8 more
doaj   +1 more source

Investigating psychometric properties and dimensional structure of an educational environment measure (DREEM) using Mokken scale analysis – a pragmatic approach

BMC Medical Education, 2018
Background Questionnaires and surveys are used throughout medical education. Nevertheless, measuring psychological attributes such as perceptions of a phenomenon among individuals may be difficult.
Per J Palmgren, Ulf Brodin, Gunnar H Nilsson, Roger Watson, Terese Stenfors   +4 more
doaj   +1 more source

Psychometric analysis of the Generalized Anxiety Disorder scale (GAD-7) in primary care using modern item response theory.

PLoS ONE, 2017
ObjectiveThe Generalized Anxiety Disorder scale (GAD-7) is one of the most frequently used diagnostic self-report scales for screening, diagnosis and severity assessment of anxiety disorder.
Pascal Jordan, Meike C Shedden-Mora, Bernd Löwe   +2 more
doaj   +1 more source

Use of NON-PARAMETRIC Item Response Theory to develop a shortened version of the Positive and Negative Syndrome Scale (PANSS)

BMC Psychiatry, 2011
Background Nonparametric item response theory (IRT) was used to examine (a) the performance of the 30 Positive and Negative Syndrome Scale (PANSS) items and their options ((levels of severity), (b) the effectiveness of various subscales to discriminate ...
Khan Anzalee, Lewis Charles, Lindenmayer Jean-Pierre   +2 more
doaj   +1 more source

Smoothness-constrained model for nonparametric item response theory

Information Science and Applied Mathematics, 2017
This paper is concerned with the nonparametric item response theory (NIRT) for estimating item characteristic curves (ICCs) and latent abilities of examinees on educational and psychological tests. In contrast to parametric models, NIRT models can estimate various forms of ICCs under mild shape restrictions, such as the constraints of monotone ...
Sato, Toshiki, Takano, Yuichi
openaire   +2 more sources

Nonparametric item response theory for investigating dimensionality of marketing scales: A SERVQUAL application [PDF]

Marketing Letters, 2008
Assessing scale dimensionality is an important issue in the marketing literature. In an exploratory context, principal axis factoring and principal components analysis receive emphasis, while other fields apply suitable alternatives. This article introduces a promising procedure known as Mokken scale analysis.
Paas, L.J., Sijtsma, K.
openaire   +3 more sources