What does a no treatment control group allow researchers to do?

A no treatment control group is essential in experimental research because it establishes a baseline for comparison. By having a group that does not receive the treatment or intervention being tested, researchers can assess the effects of the treatment more accurately. This allows them to determine whether any changes observed in the experimental group are due to the treatment itself rather than other external factors or natural variations over time.

In contrast to a treatment group that undergoes an intervention, the no treatment control group represents a standard against which any outcomes can be measured. This strengthens the validity of the research findings and helps ensure that the results can be attributed to the experimental manipulation rather than other variables.