scholarly journals Psychometric properties of the SDM-Q-9 questionnaire for shared decision-making in multiple sclerosis: item response theory modelling and confirmatory factor analysis

2017 ◽  
Vol 15 (1) ◽  
Author(s):  
Javier Ballesteros ◽  
Ester Moral ◽  
Luis Brieva ◽  
Elena Ruiz-Beato ◽  
Daniel Prefasi ◽  
...  
Keyword(s):  
Multiple Sclerosis ◽  
Decision Making ◽  
Factor Analysis ◽  
Item Response Theory ◽  
Confirmatory Factor Analysis ◽  
Psychometric Properties ◽  
Item Response ◽  
Shared Decision Making ◽  
Shared Decision ◽  
Confirmatory Factor

scholarly journals Validating patient and physician versions of the shared decision making questionnaire in oncology setting

2019 ◽  
Vol 9 (2) ◽  
pp. 105-114 ◽  
Author(s):  
Babak Nejati ◽  
Chien-Chin Lin ◽  
Vida Imani ◽  
Maria Browall ◽  
Chung-Ying Lin ◽  
...  
Keyword(s):  
Decision Making ◽  
Factor Analysis ◽  
Cancer Patient ◽  
Psychometric Properties ◽  
Shared Decision Making ◽  
Rasch Model ◽  
Shared Decision ◽  
Item Functioning ◽  
Confirmatory Factor ◽  
Unidimensional Structure

Background: This study investigated the psychometric properties of the 9-Item Shared DecisionMaking Questionnaire (SDM-Q-9) and the 9-Item Shared Decision-Making Questionnaire–Physician version (SDM-Q-Doc) using comprehensive and thorough psychometric methods in an oncology setting. Methods: Cancer survivors (n=1783; 928 [52.05%] males) and physicians (n=154; 121[78.58%] males) participated in this study. Each cancer survivor completed the SDM-Q-9. Physicians completed the SDM-Q-Doc for each of their cancer patient. Confirmatory factor analysis (CFA) and Rasch model were used to test the psychometric properties of SDM-Q-9 and SDM-Q-Doc. Results: SDM-Q-9 and SDM-Q-Doc demonstrated unidimensional structure in CFA and Rasch model. In addition, the measurement invariance was supported for both SDM-Q-9 and SDM-QDoc across sex using the multigroup CFA. Rash analysis indicates no differential item functioning(DIF)across sex for all the SDM-Q-9 and SDM-Q-Doc items. SDM-Q-9 and SDM-Q-Doc were moderately correlated (r=0.41; P<0.001). Conclusion: SDM-Q-9 and SDM-Q-Doc are valid instruments to assess shared decision making in the oncology setting.

scholarly journals Psychometric Properties and Structures of the IAT, GPIUS and GAS Scales: A Bifactor Approach

2019 ◽  
Vol 13 ◽  
Author(s):  
Lingling Xu ◽  
Yan Cai ◽  
Dongbo Tu
Keyword(s):  
Factor Analysis ◽  
Confirmatory Factor Analysis ◽  
Psychometric Properties ◽  
Item Response ◽  
Internet Addiction ◽  
Self Report ◽  
Item Response Model ◽  
Multidimensional Item Response ◽  
Test Information ◽  
Confirmatory Factor

AbstractThis study applied a bifactor approach to investigate the structures and simultaneously compare the psychometric properties of three popular self-report internet addiction (IA) instruments. A bifactor confirmatory factor analysis was used to address the structures of the three scales, while the bifactor multidimensional item response model was employed to compare the psychometric properties of the three scales. Results of bifactor confirmatory factor analysis (CFA) showed that the bifactor structures were suitable for the three scales. These corresponding bifactor structures were used in the subsequent bifactor multidimensional item response theory (MIRT) analysis. Results of the bifactor MIRT showed that: three instruments of IA performed well as a whole; the Generalised Problematic Internet Use Scale (GPIUS) and Internet Addiction Test (IAT) provided more test information and had less standard error of measurement, which ranged from −3 to −1 standard deviations of theta or IA severity; the Game Addiction Scale (GAS) performed better than the other two scales in that it can provide more test information in the large area of IA severity (from −1 to +3 SDs). These suggest that the GPIUS and IAT may be the best choice for epidemiological IA studies and for measuring those with lower IA severity. Meanwhile, the GAS may be a good choice when we recruit those with various levels of IA severity.

scholarly journals Evidence of Validity of a Modern Homonegativity Measure against Gays and Lesbians

Psico-USF ◽  
2019 ◽  
Vol 24 (4) ◽  
pp. 673-684 ◽  
Author(s):  
Kaline da Silva Lima ◽  
Juliana Maria Vieira Tenório ◽  
Francisco Romário ◽  
Luã Medeiros Fernandes de Melo ◽  
Josemberg Moura de Andrade
Keyword(s):  
Factor Analysis ◽  
Item Response Theory ◽  
Confirmatory Factor Analysis ◽  
Item Response ◽  
The Other ◽  
Validity Evidence ◽  
Proposed Model ◽  
Confirmatory Factor ◽  
Parallel Forms ◽  
High Degree

Abstract The goal of this research was to adapt and obtain validity evidence of the Modern Homonegativity Scale (MHS), which is set by two parallel forms with 12 items, one of them referring to gays (MHS-G) and the other referring to lesbians (MHS-L). In the first study 418 heterosexuals between 18 and 58 years old (M = 24,9; SD = 7,23), mostly women (66,3%) living at João Pessoa-PB (50,5%) answered. Both scales have shown as unidimensional and containing a high degree of internal consistency. The second study had the participation of 273 heterosexuals between 18 and 55 years old (M = 23,7; SD = 6,33), mostly women (69%). The confirmatory factor analysis showed satisfactory adjustment indexes for the proposed model and the Item Response Theory (IRT) demonstrated a good degree of discrimination and variation of the difficulty parameters. Therefore, we may conclude MHS is psychometrically valid, easily applicable and can be used in research contexts.

Sign in / Sign up

Export Citation Format

Share Document