Results 1 to 10 of about 29,715 (299)

Detecting Violations of Unidimensionality by Order-Restricted Inference Methods

open access: yesFrontiers in Applied Mathematics and Statistics, 2016
The assumption of unidimensionality and quantitative measurement represents one of the key concepts underlying most of the commonly applied of item response models.
Moritz Heene
exaly   +3 more sources

The Utility of the Bifactor Method for Unidimensionality Assessment When Other Methods Disagree

open access: yesSAGE Open, 2016
This article provides an empirical illustration of the utility of the bifactor method for unidimensionality assessment when other methods disagree. Specifically, we used two popular methods for unidimensionality assessment: (a) evaluating the model fit ...
Yong Luo, Khaleel Al-Harbi
exaly   +2 more sources

Item Analysis of the Behavior Rating Inventory of Executive Function‐Adults Version Using the Rasch Model in Two Forms for People With Schizophrenia in Taiwan [PDF]

open access: yesInternational Journal of Methods in Psychiatric Research
Background The Behavior Rating Inventory of Executive Function‐Adults version (BRIEF‐A) consists of two forms, self‐report and informant‐report. Each form encompasses nine scales to assess executive functions.
En‐Chi Chiu   +3 more
doaj   +2 more sources

Psychometric properties of the 12-item short form health survey version 2 among general Thai samples: a Rasch analysis [PDF]

open access: yesJournal of Pharmaceutical Policy and Practice
Background Although the 12-item Short Form Health Survey version 2 (SF-12v2) is suitable for measuring health status in the general Thai population, it has been evaluated using classical test theory. Rasch analysis, however, offers a psychometric testing
Krittaphas Kangwanrattanakul
doaj   +2 more sources

Rasch Validation of the FRTVMI in Arab Adolescents: Cultural and Gender Considerations in Visual–Motor Assessment [PDF]

open access: yesOccupational Therapy International
This study examined the construct validity of the Full Range Test of Visual–Motor Integration (FRTVMI) among adolescents aged 11–16 years in Oman, Qatar, and Kuwait using the Rasch measurement model. A total of 2464 students were selected through cluster
Ehab Mohamed Naguib Omara   +6 more
doaj   +2 more sources

The impact of missing data rates and imputation methods on the assumption of unidimensionality. [PDF]

open access: yesPLoS ONE
Statistical models are essential tools in data analysis. However, missing data plays a pivotal role in impacting the assumptions and effectiveness of statistical models, especially when there is a significant amount of missing data.
Ayman Omar Baniamer
doaj   +2 more sources

Rasch validation of the Arabic version of the beach center family quality of life scale (BCFQOL-AR)

open access: yesFrontiers in Psychology, 2022
AimThis study aimed to examine the dimensionality of the BCFQOL-AR using Rasch analysis.MethodThe sample consisted of 320 families having a member with intellectual or developmental disabilities.
Ghaleb Hamad Alnahdi
doaj   +1 more source

Study of the Unidimensionality of the Subjective Measurement Scale of Schizophrenia Coping Oral Health Profile and Index: SCOOHPI

open access: yesBehavioral Sciences, 2022
Background: The Schizophrenia Coping Oral Health Profile and Index (SCOOHPI) scale studies the coping strategies of schizophrenic patients with regard to oral health. The structural validity of this scale is studied has been studied using factor analyses.
Mohamad Hamad   +4 more
doaj   +1 more source

Cronbach’s alpha in mathematics education research: Its appropriateness, overuse, and alternatives in estimating scale reliability

open access: yesFrontiers in Psychology, 2022
Critiques of coefficient alpha as an estimate of scale reliability are widespread in the literature. However, the continuous overuse of this statistic in mathematics education research suggests a disconnection between theory and practice.
Yusuf F. Zakariya
doaj   +1 more source

ARDP: SIMPLIFIED MACHINE LEARNING PREDICTOR FOR MISSING UNIDIMENSIONAL ACADEMIC RESULTS DATASET [PDF]

open access: yesApplied Computer Science, 2023
In this paper, we present the Academic Results Datasets Predictor (ARDP), for missing academic results datasets, based on chi-squared expected calculation, positional clustering, progressive approximation of relative residuals, and positional averages of
Olufemi A. FOLORUNSO   +2 more
doaj   +1 more source

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