Leadership is currently viewed as a guarantee for educational quality and reforms, as a crucial component for schools' capacity building and as a major contributor to the transformation of practices. Although an array of leadership studies report on the need for leadership by demonstrating what leaders must do or how leadership practices should be…

Compares the Group Valence Model (GVM) to several derived versions of the Valence Distribution Model (VDM), as they relate to the group problem-solving process. Suggests that, not withstanding predictive accuracy, the VDM seems generally inferior to the GVM, which consistently accounts for more of the decision-making phenomenon. Discusses…