What are the different types of control groups?

The two different types of control groups are positive and negative control groups. 

• A positive control in an experiment is a group that gets a treatment with a predictable outcome. It serves as a standard to compare against the experimental group, helping scientists ensure that any changes observed are due to the treatment being tested and not other factors. 
• In contrast, negative control groups are experimental groups in which the conditions are deliberately set to not produce the desired outcome.