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The Multifactor Leadership Questionnaire (MLQ) is the most widely used instrument for assessing dimensions of leadership style; yet, most studies have failed to reproduce the original MLQ factor structure. The current study evaluates the dimensionality and nomological validity of Bass's transactional and transformational leadership model using the MLQ in a sample of registered nurses working in acute care hospitals in Canada. A combination of exploratory and confirmatory factor analyses were used to evaluate the hypothetical factor structure of the MLQ consisting of five transformational factors, and three transactional factors. Results suggest that the eight-factor solution displayed best fit indices; however, two transactional factors should be extracted due to high interscale correlations and lack of differential relationships with the two leadership variables. The findings support a scale refinement and the need for new theory concerning the five transformational leadership and contingent reward dimensions of the MLQ. [ABSTRACT FROM AUTHOR]

This article reports on three studies that used a combination of methods to develop a measure of transformational leadership in India. The grounded theory approach was followed for generating the initial item-pool (n = 250). In the second study (n = 379), an exploratory factor analysis was conducted, followed by a confirmatory factor analysis, which resulted in a six-factor model. The factors show support for both universal as well as unique cultural dimensions. In the third study (n = 202; 101 manager subordinate dyads) survey data were collected and support was found for sound psychometric properties of the new scale, including incremental, discriminant, convergent, and predictive validity. The new scale explained significant variance over and above the variance explained by the currently existing scale for measuring transformational leadership. [ABSTRACT FROM AUTHOR]