Psychometric properties of the Portuguese version of the Global Transformational Leadership (GTL) scale

The aim of this study is to adapt and consequently validate theGlobal Transformational Leadershipmeasuring scale (GTL). The scale was therefore applied to a sample of 456 members of 70 work groups, belonging to 26 organizations. The factorial structure of the scale was analysed through the explorato...

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Bibliographic Details
Main Authors: Patrícia van Beveren, Isabel Dórdio Dimas, Paulo Renato Lourenço, Teresa Rebelo
Format: Article
Language:English
Published: Colegio Oficial de Psicólogos de Madrid 2017-07-01
Series:Journal of Work and Organizational Psychology
Online Access:http://www.copmadrid.org/webcopm/publicaciones/trabajo/tr2017v33n2a3.pdf
Description
Summary:The aim of this study is to adapt and consequently validate theGlobal Transformational Leadershipmeasuring scale (GTL). The scale was therefore applied to a sample of 456 members of 70 work groups, belonging to 26 organizations. The factorial structure of the scale was analysed through the exploratory factor analysis (EFA) and confirmatory factor analysis (CFA), with the sample being split in two equal parts: EFA was conducted in both sub-samples and CFA was applied in the second sub-sample. The internal consistency was evaluated via Cronbach's alpha and the nomological validity was analysed via the evaluation of the GTL's correlations with both team-level autonomy and quality of group experience. The results revealed the presence of a unidimensional scale with a good level of internal consistency. Regarding the nomological validity, the results pointed to hypothetical relations, since the GTL showed positive correlations with the variables considered. Thus, the Portuguese version of the GTL is presented as a useful instrument for evaluating transformational leadership.
ISSN:1576-5962
2174-0534