What is the term for a situation where participants do not receive the intervention?

The correct answer is the control group. In experimental research, the control group is essential as it serves as a baseline against which the effects of the intervention can be measured. Participants in this group do not receive the treatment or intervention that is being tested. This allows researchers to understand what happens in the absence of the treatment, helping them to isolate the effects of the intervention itself. By comparing the outcomes of the control group with those of the treatment group, researchers can determine whether any observed effects are due to the intervention or other external factors.

The other options do not accurately fit the description provided in the question. The treatment group, on the other hand, is the group that receives the intervention, while a manipulation check is a measure used to assess whether the manipulation of an independent variable has had the intended effect. Finally, a field study refers to research conducted in a natural environment rather than a controlled setting. Each of these terms serves a different purpose in the context of experimental research.