A judgement criterion (also called "reasoned assessment criterion") specifies an aspect of the merits or success of the evaluated intervention. It is used to answer an evaluation question positively or negatively.
To formulate an explicit judgement, it is recommended to refer both to a judgement criterion and to a target, that is, to a performance standard, a success threshold, a benchmark or a good practice as a point of comparison.
To assess whether the intervention has been successful or not in relation to the judgement criterion and the target, the evaluation team collects data and relies on evidence.
Indicators specify in advance which data are to be collected. They thus help to focus the data collection process. The evaluation team may also use additional data gathered in an unstructured way.
There are different categories of indicators. The evaluation focuses primarily on result and impact indicators used in the framework of surveys, management databases or statistical sources.
An indicator may be quantitative or qualitative. In both cases it is defined in detail in advance. In the latter case we also refer to an indicator obtained by scoring.
From question to criterion, and to indicator
This site proposes an approach for switching from evaluation questions to judgement criteria and indicators. The procedure is explained by means of two examples: country evaluation and sector evaluation.