The purpose of this study was to explore leadership effectiveness from the perspectives of the Full Range Leadership Model and Cognitive Style Theory within the framework of understanding both followers and leaders as individual's attitudes to leadership effectiveness. Leadership effectiveness was measured using newly developed self-report instrument, the Leadership Effectiveness Questionnaire (LEQ) with three scales of effectiveness as suggested by Yukl (2002), which were: 1) aims, 2) followers' attitude towards the leader and, 3) group processes. The Full Range leadership approaches were measured using Bass & Avolio's (1997) Multifactor Leadership Questionnaire (MLQ) Form 5X-Short, whilst cognitive style was gathered by using Allinson & Hayes's (1996) Cognitive Style Index (CSI). A two stage (questionnaire survey followed by semi structured interviews) mixed method study was undertaken. Questionnaire data was gathered from 331 followers and 172 leaders in Malaysian Government-Linked Companies, and 10 leaders involved in the interviews. Findings from the survey suggest that a transformational approach was correlated significantly and positively with effectiveness. Intuitive Cognitive Style also correlated significantly with leadership effectiveness. Findings from the semistructured interviews identified a few more characteristics of an effective leadership such as balance and appreciative, whilst new dimensions of cognitive style identified such as rational and holistic.

The purpose of this study was to explore leadership effectiveness from the perspectives of the Full Range Leadership Model and Cognitive Style Theory within the framework of understanding both followers and leaders as individual¿s attitudes to leadership effectiveness. Leadership effectiveness was measured using newly developed self-report instrument, the Leadership Effectiveness Questionnaire (LEQ) with three scales of effectiveness as suggested by Yukl (2002), which were: 1) aims, 2) followers¿ attitude towards the leader and, 3) group processes. The Full Range leadership approaches were measured using Bass & Avolio¿s (1997) Multifactor Leadership Questionnaire (MLQ) Form 5X-Short, whilst cognitive style was gathered by using Allinson & Hayes¿s (1996) Cognitive Style Index (CSI). A two stage (questionnaire survey followed by semi structured interviews) mixed method study was undertaken. Questionnaire data was gathered from 331 followers and 172 leaders in Malaysian Government-Linked Companies, and 10 leaders involved in the interviews. Findings from the survey suggest that a transformational approach was correlated significantly and positively with effectiveness. Intuitive Cognitive Style also correlated significantly with leadership effectiveness. Findings from the semistructured interviews identified a few more characteristics of an effective leadership such as balance and appreciative, whilst new dimensions of cognitive style identified such as rational and holistic. / Ministry of Higher Education (MOHE) Malaysia; and Universiti Malaysia Sarawak (Unimas).