A group of people (or settings) that are similar to those within your project, in which you track the same measures and compare the difference as part of a Control Trial. If the groups are otherwise equivalent, then any change can be attributed to your project. Randomising whether people are allocated to the control group or project group increases the strength of your findings, and is known as a Randomised Control Trial or RCT.
In general terms Impact refers to the effect or results of your project. It can also refer to the broad or longer-term effect of your project, over and above any intended outcomes – for example, to culture, society or the environment.
A way of articulating how a project’s inputs, activities, outputs and outcomes logically connect with and contribute to each other; and of testing underpinning evidence and assumptions. A logic model is one way of displaying a theory of change.
A type of evaluation that measures and values the social, environmental and economic benefits of a project. SROIs look beyond traditional financial values, and involve a careful consideration of how and why change is taking place.
A Theory of Change is a description and illustration of how and why a desired change is expected to happen. It maps out what a project does, and how that’s expected to lead to desired goals being achieved.