University of Nigeria. July, 2017 ARTICLE WHOLE SCHOOL EVALUATION IN POST PRIMARY SCHOOLS CHUKWUEMEKA A. METU Educational Measurement and Evaluation Introduction Evaluation according to Nworgu (2015) is a process of seeking, obtaining and quantifying data with a view to making value judgement about objects, events or their characteristics. Whole school evaluation (WSE) is a process of external evaluation of the work of a school carried out by the Inspectorate of the Department of Education and Science (DES). The process is designed “to monitor and assess the quality, economy, efficiency and effectiveness of the education system provided in the state by recognised schools and centres for education” (Education Act 1998). Whole School Evaluation is one of a number of external evaluative instruments used by the Inspectorate in schools. At post-primary level, subject inspection is an established approach to evaluating individual subjects and is an integral part of Whole School Evaluation. Subject inspectionprocedures are set out in A Guide to Subject Inspection at Second Level (2004). The Whole-School Evaluation model is used to provide evaluative information, advice and support to the school. These inspections affirm good practice and make recommendations, where appropriate, to inform the further development of educational provision in the school. In addition to evaluating management and leadership, the inspectors examine the quality of teaching, learning and pupil achievement in the core subject. A regional assistant chief inspector nominates the reporting inspector and the evaluation team for each whole-school evaluation. The number of inspectors who will work on the evaluation team depends on the size of the school. The reporting inspector has overall responsibility for the organisation and co-ordination of the Whole School Evaluation.