DEFINITION 1: Signal that reveals progress (or lack thereof) towards objectives; means of measuring what actually happens against what has been planned in terms of quantity, quality and timeliness. An indicator is a quantitative or qualitative variable that provides a simple and reliable basis for assessing achievement, change or performance.
SOURCE: Handbook on monitoring and evaluating for results. UNDP, Evaluation Office, New York, 2002.
DEFINITION 2: Quantitative or qualitative factor or variable that provides a simple and reliable means to measure achievement, to reflect the changes connected to an intervention in the field of VET, or to help assess the performance of a VET actor.
SOURCE: Adapted from Glossary of Key Terms in Evaluation and Results Based Management OECD, Development Co-operation Directorate, Paris, 2010.
DEFINITION 3: [An indicator is a] variable, based on measurements, representing as accurately as possible and necessary a phenomenon of interest to human beings.
SOURCE: Functionalities of indicators and role of context. Towards the definition of a measurable environmentally sustainable transport, R. Joumard and H. Gudmundsson, 2007.
DEFINITION 4: an indicator is an individual or composite statistic that relates to a basic construct in education and is useful in a policy context.
SOURCE: ERIC Clearinghouse on Tests Measurement and Evaluation Washington DC.
RELATED TERMS: context indicator, indicator system, indicator, input indicator, outcome indicator, output indicator, performance indicator, proxy indicator, quality indicator, statistical indicator, supplementary indicator