There are many important factors that influence and even determine the work of middle and senior managers in the public and private sectors, NGOs, and international organizations such as the UN. Yet, despite this overall agreement, the study of 'managerial effectiveness' has remained relatively neglected and unexplored particularly within the developing world. The present research explores the dimensions of the managerial effectiveness of middle and senior managers who work in the Education Programme of the UN Agency in Lebanon. These managers are dedicated to refugees and their children at primary and high schools, and vocational centers. In doing so this study has adopted the framework, 'parameters of managerial effectiveness', developed by Analoui (1999) to explore and identify the factors and causal influences which form the basis for the effectiveness of these managers to develop policies and strategies for their increased effectiveness. The literature in the areas of development of management, management training and development, and recent works on managerial effectiveness confirm the importance of the parameters and interrelationship between them and the unique contextual factors, namely the personal, organizational and external factors. The Education Programme of the UNRWA in Lebanon provides a suitable case, and the middle and senior managers constitute the units of analysis. The entire cadre of senior and middle management (N= 132) were included in this first time study. The methodology adopted for collecting and generating relevant and adequate data was a combination of survey questionnaire, interviews and the use of secondary data available. The adoption of 'triangulation' as a strategy yielded adequate and relevant data which was analyzed using statistical methods. The quantitative analysis was supported by qualitative data based on senior and middle managers' own perception of their effectiveness. The results, by and large, support Anloui's (1999; 2007) theory and led to the first time discovery of the eight parameters of the managerial effectiveness in UNRWA, Lebanon. The results revealed a myriad of factors and influences concerning the middle and senior managers' perception, managerial skills and competencies, organizations criteria for effectiveness, opportunities, demands and constraints involved, as well as the inter-organizational relationship and the dominant managerial philosophy of effectiveness. The study contributes to the literature on managerial effectiveness by contextualizing the model adopted thus contributing to this neglected field of managerial studies. It also provides the basis for the formulation of policies and strategies to improved and increase managerial effectiveness in Lebanon, Syria, Jordan and Palestine, and the developing world as the whole where UN is actively operating to support refugees. Like any empirical investigation the study suffers from limitations which need to be considered in the future research in this field.

La notion de compétence et l'approche par compétences constituent une véritable préoccupation pour les différents systèmes éducatifs. L'introduction de l'enseignement et de l'apprentissage fondés sur les compétences constitue le noyau et la base des projets de réforme actuels pour adapter les écoles aux besoins de notre temps. L'APC met en relief la capacité de l'élève d'utiliser ce qu'il a appris à l'école dans des situations de la vie quotidienne. L'objectif premier de notre recherche consiste à étudier l'impact de l'introduction de l'APC sur le système éducatif libanais et la possibilité d'adapter cette approche au sein des écoles libanaises publiques. Pour ce faire, l'idée d'un projet d'un curriculum est mise en place, fondée sur une APC compatible avec les conditions d'enseignement au Liban. / The concept of competence and the approach by competence constitute a genuine preoccupation of different educatifs systems. The introduction of process teaching and learning based on competences is the core of reforming projects required by the schools to adapt to the contemporary needs. The approach by competence accentuate the skills of student to practice whatever he learned at the school in his everyday life. The essential objectif of this study is to analyze the effect of the introduction of the approach by competence on the Lebanese educatif system and the possibility to adapt this approach in the Lebanese public schools. Thus, to achieve our goal, a Curriculum based on the approach by competence compatible with the Lebanese conditions of teaching been established.