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General practitioners attitude and confidence scale for dementia (GPACS-D): confirmatory factor analysis and comparative subscale scores among GPs and supervisors


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Mason, R ORCID: 0000-0002-7270-3843, Doherty, K ORCID: 0000-0002-0122-0123, Eccleston, C ORCID: 0000-0002-7913-6888, Annear, M, Lo, A, Tierney, L ORCID: 0000-0003-0919-8706, McInerney, F ORCID: 0000-0003-1781-402X and Robinson, A 2019 , 'General practitioners attitude and confidence scale for dementia (GPACS-D): confirmatory factor analysis and comparative subscale scores among GPs and supervisors' , BMC Family Practice, vol. 20, no. 1 , p. 6 , doi: 10.1186/s12875-018-0896-1.

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Background: The attitude of General Practitioner’s (GP’s) towards dementia and confidence in their clinical abilities impacts on diagnosis rates and management of the condition. The purpose of the present research is to refine and confirm the reliability and validity of the General Practitioner Attitudes and Confidence Scale for Dementia (GPACS-D) as a tool to measure confidence and attitude.Methods: A sample of 194 GP volunteers attending dementia education workshops were recruited to complete the GPACS-D before and after the workshop. Volunteer respondents comprised both GP Registrars and GP Supervisors. Analyses included Confirmatory Factor Analysis (CFA), measures of internal consistency, Pearson correlations, and a comparison of subscale scores between cohorts (T-Test for independent samples).Results: Findings of the CFA support a 15-item, 3-factor model with four items removed due to poor performance and one item moved between factors. The resultant model exhibited good fit (x2 = 103.88; p = .105; RMSEA = .032; PCLOSE = .915; CFI = .967; TLI = 960), with acceptable internal consistency. Subscales exhibited clear discriminant validity with no underlying relationships between subscales. Finally, total and subscale scores exhibited good discrimination between groups who would be expected to score differently based on experience and level of exposure to dementia.Conclusion: The 15-item, 3-subscale GPACS-D is a reliable and valid measure of GP confidence and attitudes toward dementia. The subscales clearly distinguish between groups who might be expected to score differently from each other based on their training or professional experiences. The psychometric properties of the GPACS-D support its use as a research tool.

Item Type: Article
Authors/Creators:Mason, R and Doherty, K and Eccleston, C and Annear, M and Lo, A and Tierney, L and McInerney, F and Robinson, A
Keywords: attitudes, confidence, dementia education, general practitioner, scale validation,survey development, training, confidence, attitudes, dementia
Journal or Publication Title: BMC Family Practice
Publisher: Biomed Central Ltd
ISSN: 1471-2296
DOI / ID Number: 10.1186/s12875-018-0896-1
Copyright Information:

Copyright 2019 The Authors. Licensed under Creative Commons Attribution 4.0 International (CC BY 4.0)

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