摘要: This current report is the third of four reports from the follow-up evaluation of The National Leadership Education for School Principals-an initiative to strengthen leadership competence for principals and school leaders in primary, lower and upper secondary schools in Norway, started by the Directorate for Education and Training. The evaluation is a collaboration between NIFU and NTNU Social Research for the period 2010-2014. This report is written by Ingunn Hybertsem Lysø (NTNU Social Research), Bjørn Stensaker (NIFU, project leader), Roger Andre Federici (NTNU Social Research), Anniken Solem (NTNU Social Research) and Per Olaf Aamodt (NIFU). Lysø and Stensaker have coordinated the work with the report, and the researchers have cooperated on the analyses of the different data sources. Federici and Aamodt have had a specific responsibility for quantitative data and analyses, while Lysø and Solem have contributed with the collection of qualitative interviews. The authors thank Per Morten Schiefloe from NTNU/NTNU Social Research and Jannecke Wiers-Jenssen from NIFU, as well as the Norwegian Directorate for Education and Training for constructive comments to an earlier draft of the report.