Dealing with deception and protection from harm
1. At the end of a study, participants should be given a full debrief. Within this, participants should be made aware of the true aims of the investigation and any details they were not supplied with during the study, such as the existence of other groups or experimental conditions
2. Participants should also be told what their data will be used for and must be given the right to withdraw during the study and the right to withhold data if they wish. This is particularly important if retrospective consent is a feature of the study (see right)
3. Participants may have natural concerns related to their performance within the investigation, and so should be reassured that their behaviour was typical or normal. In extreme cases, if participants have been subject to stress or embarrassment, they may require counselling, which the researcher should provide