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Identify a group of people who will experience your intervention. This group is called the Intervention Participants.
Identify a group of similar people (i.e. with similar backgrounds, characteristics, situations) who will NOT experience your intervention. This second group is called the Control Group.
Conduct surveys and/or capture progress information about the people in BOTH groups over the duration of your intervention
At the end of your intervention, compare the results of the people who experienced your intervention with the results of the people who did not experience your intervention
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