Purpose: Implementing health promotion programmes in schools is key to improving children's health and well-being but difficulties in achieving expected results are often reported in the research literature. Discrepancies between expected and achieved outcomes can originate from differences in contexts. Understanding how interactions between…

The Programme for International Assessment of Adult Competencies (PIAAC) will establish technical standards and guidelines to ensure that the survey design and implementation processes of PIAAC yield high-quality and internationally comparable data. This document provides a revised version of the technical standards and guidelines originally…