scholarly journals Body Appreciation Scale (BAS-2): Measurement Invariance across Genders and Item Response Theory Examination.

2021 ◽  
Author(s):  
Daniel Zarate ◽  
Joshua Marmara ◽  
Camilla Potoczny ◽  
Warwick Hosking ◽  
Vasielios Stavropoulos
Keyword(s):  
Item Response Theory ◽  
Measurement Invariance ◽  
Item Response ◽  
The Body ◽  
Body Appreciation ◽  
Response Theory ◽  
Differential Functioning ◽  
Males And Females ◽  
The Mean ◽  
Two Parameter

Abstract Background: The present study considers a measure of positive body image, the Body Appreciation Scale-2, which assesses acceptance and/or favourable opinions towards the body (BAS-2[29]). Differential functioning of the scale across the two genders, as well as its items, has not been excluded. The present study contributes to this area of knowledge via the employment of gender Measurement Invariance (MI) and Item Response Theory (IRT) analyses. Methods: A group of 386 adults from the community were assessed (N = 394, 54.8% men, 43.1% women, M age = 27.48; SD = 5.57). Results: MI analysis observed invariance across males and females at the configural level, and non-invariance at the metric level. Further, the two-parameter logistic model employed to observe IRT properties indicated that all items demonstrated, although variable, strong discrimination capacity. Conclusions: The items showed increased reliability for latent levels of ∓ 2 SD from the mean level of Body Appreciation. The implications and interpretations of the findings for clinical practice are discussed.

scholarly journals Body Appreciation Scale (BAS-2): measurement invariance across genders and item response theory examination

2021 ◽  
Vol 9 (1) ◽  
Author(s):  
Daniel Zarate ◽  
Joshua Marmara ◽  
Camilla Potoczny ◽  
Warwick Hosking ◽  
Vasileios Stavropoulos
Keyword(s):  
Item Response Theory ◽  
Measurement Invariance ◽  
Item Response ◽  
The United States ◽  
The Body ◽  
Body Appreciation ◽  
Response Theory ◽  
Clinical Interviews ◽  
Graded Response ◽  
Males And Females

Abstract Background The present study considers a measure of positive body image, the Body Appreciation Scale-2, which assesses acceptance and/or favourable opinions towards the body (BAS-2). Potential variations of the psychometric properties of the scale across males and females, as well as across its different items invite for further investigation. The present study contributes to this area of knowledge via the employment of gender Measurement Invariance (MI) and Item Response Theory (IRT) analyses. Methods A group of 386 adults from Australia, Canada, New Zealand, Ireland, the United Kingdom, and the United States of America (USA) were assessed online (N = 394, 54.8% men, 43.1% women, Mage = 27.48; SD = 5.57). Results MI analyses observed invariance across males and females at the configural level, and non-invariance at the metric level. Further, the graded response model employed to observe IRT properties indicated that all items demonstrated, although variable, strong discrimination capacity. Conclusions The items showed increased reliability for latent levels of ∓ 2 SD from the mean level of Body Appreciation (BA). Gender comparisons based on BAS-2 should be cautiously interpreted for selected items, due to demonstrating different metric scales and same scores indicating different severity. The BAS-2 may also not perform well for clinically low and high BA levels. Thus, it should optimally be accompanied by clinical interviews for formal assessment in such cases.

Warwick Edinburgh Mental Well-Being Scale (WEMWBS): Measurement Invariance Across Genders And Item Response Theory Examination

2021 ◽  
Author(s):  
Joshua Marmara ◽  
Daniel Zarate ◽  
Jeremy Vassallo ◽  
Rhiannon Patten ◽  
Vasileios Stavropoulos
Keyword(s):  
Item Response Theory ◽  
Measurement Invariance ◽  
Item Response ◽  
Community Sample ◽  
Well Being ◽  
The United States ◽  
Subjective Well Being ◽  
Response Theory ◽  
Males And Females ◽  
Mental Well Being

Abstract Background: The Warwick Edinburgh Mental Well-Being Scale (WEMWBS) is a measure of subjective well-being and assesses eudemonic and hedonic aspects of well-being. However, differential scoring of the WEMWBS across gender and its precision of measurement has not been examined. The present study assesses the psychometric properties of the WEMWBS using Measurement Invariance (MI) between males and females and Item Response Theory (IRT) analyses. Method: A community sample of 386 adults from the United States of America (USA), United Kingdom, Ireland, Australia, New Zealand, and Canada were assessed online (N = 394, 54.8% men, 43.1% women, Mage = 27.48, SD = 5.57). Results: MI analyses observed invariance across males and females at the configural level and metric level but non-invariance at the scalar level. The graded response model conducted to observe item properties indicated that all items demonstrated, although variable, sufficient discrimination capacity.Conclusions: Gender comparisons based on WEMWBS scores should be cautiously interpreted for specific items that demonstrate different scalar scales and similar scores indicate different severity. The items showed increased reliability for latent levels of ∓ 2 SD from the mean level of SWB. The WEMWBS may also not perform well for clinically low and high levels of SWB. Including assessments for clinical cases may optimise the use of the WEMWBS.

The Teen Screen for Dating Violence: An Item Response Theory Analysis

2019 ◽  
pp. 088626051986372 ◽  
Author(s):  
Kelly Emelianchik-Key ◽  
Kimberly F. Colvin
Keyword(s):  
Item Response Theory ◽  
Item Response ◽  
Dating Violence ◽  
Teen Dating Violence ◽  
Response Theory ◽  
Item Functioning ◽  
Item Response Theory Analysis ◽  
Males And Females ◽  
Teen Dating ◽  
Study Participants

There continues to be a lack of fundamental knowledge regarding assessment, conceptualization, and treatment of teen dating violence (TDV). This deficiency of knowledge becomes even greater when examining gender differences in violence experience, perpetration, and perception. This article details the item response theory (IRT) analysis of the Teen Screen for Dating Violence (TSDV) and includes an assessment of differential item functioning (DIF) reported by gender. The TSDV examines adolescents’ perception, experience, perpetration, and exposure to violence, while also exploring support systems. The study participants included males and females between 13 and 21 years of age. Further refinement of the TSDV contributes to a more accurate and comprehensive conceptualization of TDV measurement. The results of this study support the use of the TSDV to assess for TDV in the adolescent population. The DIF analysis reveals that many of the items function differently for males and females, which provides evidence indicating that how TDV is experienced, perceived, and perpetrated differs across gender. The TSDV can assist clinicians in early TDV prevention, intervention, and education for males and females. It can also assist researchers in more accurately estimating perpetration, experience, and conceptualization of the three violence facets (emotional, physical, and sexual) in males and females. To further expand TDV knowledge, we offer recommendations for the use of the TSDV in various settings. The TSDV is a vital tool for clinicians, supervisors, and researchers to implement to mitigate the TDV epidemic and help bridge the gap in mental health services.

scholarly journals Characteristics and equation of accounting vocational theory trial test items for vocational high schools by subject-matter teachers' forum

2017 ◽  
Vol 3 (2) ◽  
pp. 152
Author(s):  
Dian Normalitasari Purnama
Keyword(s):  
Item Response Theory ◽  
Item Response ◽  
Sampling Technique ◽  
Response Theory ◽  
Test Items ◽  
Descriptive Research ◽  
Vocational Theory ◽  
Trial Test ◽  
The Mean ◽  
B Test

This study is aimed at: (1) understanding the characteristics of Accounting Vocational Theory trial test items using the Item Response Theory and (2) determining the horizontal equation of Accounting Vocational Theory trial exam instruments. This was explorative-descriptive research, observing the subject of the eleventh-grade students. The research objects were test instruments and responses of students from six schools selected through the stratified random sampling technique. The data analysis employed review sheets and BILOG program for the Item Response Theory 2PL. The findings were as follows. (1) The test item review of test packages A and B found 37 good quality items, the Item Response Theory using 2PL showed that Package A Test generated 27 good questions, Package B Test contained 24 good questions. (2) The question equating using the Mean/Sigma method resulted in the equation of = 1.168bx + 0.270, with the Mean/Mean method resulting in the equation of  = 0.997bx - 0.250, the Mean/Mean method at 0.250, while Mean/Sigma method at 0.320. 

scholarly journals Methodological and Statistical Considerations for the National Children's Study

2021 ◽  
Vol 9 ◽  
Author(s):  
Ron D. Hays ◽  
David Hubble ◽  
Frank Jenkins ◽  
Alexa Fraser ◽  
Beryl Carew
Keyword(s):  
Quality Of Life ◽  
Item Response Theory ◽  
Measurement Invariance ◽  
Item Response ◽  
International Society ◽  
Measurement Model ◽  
Response Theory ◽  
Quality Of Life Research

The National Children's Study (NCS) statistics and item response theory group was tasked with promoting the quality of study measures and analysis. This paper provides an overview of six measurement and statistical considerations for the NCS: (1) Conceptual and Measurement Model; (2) Reliability; (3) Validity; (4) Measurement Invariance; (5) Interpretability of Scores; and (6) Burden of administration. The guidance was based primarily on recommendations of the International Society of Quality of Life Research.

scholarly journals Scale length does matter: Recommendations for Measurement Invariance Testing with Categorical Factor Analysis and Item Response Theory Approaches

2020 ◽  
Author(s):  
E. Damiano D'Urso ◽  
Kim De Roover ◽  
Jeroen K. Vermunt ◽  
Jesper Tijmstra
Keyword(s):  
Factor Analysis ◽  
Item Response Theory ◽  
Measurement Invariance ◽  
Item Response ◽  
Simulation Studies ◽  
Response Theory ◽  
Multiple Group ◽  
Item Level ◽  
Positive Rate ◽  
Scale Length

In social sciences, the study of group differences concerning latent constructs is ubiquitous. These constructs are generally measured by means of scales composed of ordinal items. In order to compare these constructs across groups, one crucial requirement is that they are measured equivalently or, in technical jargon, that measurement invariance holds across the groups. This study compared the performance of multiple group categorical confirmatory factor analysis (MG-CCFA) and multiple group item response theory (MG-IRT) in testing measurement invariance with ordinal data. A simulation study was conducted to compare the true positive rate (TPR) and false positive rate (FPR) both at the scale and at the item level for these two approaches under an invariance and a non-invariance scenario. The results of the simulation studies showed that the performance, in terms of the TPR, of MG-CCFA- and MG-IRT-based approaches mostly depends on the scale length. In fact, for long scales, the likelihood ratio test (LRT) approach, for MG-IRT, outperformed the other approaches, while, for short scales, MG-CCFA seemed to be generally preferable. In addition, the performance of MG-CCFA's fit measures, such as RMSEA and CFI, seemed to depend largely on the length of the scale, especially when MI was tested at the item level. General caution is recommended when using these measures, especially when MI is tested for each item individually. A decision flowchart, based on the results of the simulation studies, is provided to help summarizing the results and providing indications on which approach performed best and in which setting.

scholarly journals An Application of Item Response Theory to Scoring Patient Safety Culture Survey Data

2020 ◽  
Vol 17 (3) ◽  
pp. 854
Author(s):  
Heon-Jae Jeong ◽  
Hsun-Hsiang Liao ◽  
Su Ha Han ◽  
Wui-Chiang Lee
Keyword(s):  
Patient Safety ◽  
Item Response Theory ◽  
Item Response ◽  
Safety Culture ◽  
Patient Safety Culture ◽  
Ordinal Scale ◽  
Response Theory ◽  
Scoring Method ◽  
The Mean ◽  
Domain Scores

Patient safety culture is important in preventing medical errors. Thus, many instruments have been developed to measure it. Yet, few studies focus on the data processing step. This study, by analyzing the Chinese version of the Safety Attitudes Questionnaire dataset that contained 37,163 questionnaires collected in Taiwan, found critical issues related to the currently used mean scoring method: The instrument, like other popular ones, uses a 5-point Likert scale, and because it is an ordinal scale, the mean scores cannot be calculated. Instead, Item Response Theory (IRT) was applied. The construct validity was satisfactory and the item properties of the instrument were estimated from confirmatory factor analysis. The IRT-based domain scores and mean domain scores of each respondent were estimated and compared. As for resolution, the mean approach yielded only around 20 unique values on a 0 to 100 scale for each domain; the IRT method yielded at least 440 unique values. Meanwhile, IRT scores ranged widely at each unique mean score, meaning that the precision of the mean approach was less reliable. The theoretical soundness and empirical strength of IRT suggest that healthcare institutions should adopt IRT as a new scoring method, which is the core step of processing collected data.

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