If researchers report data from a study where they hired experimental confederates. The type of research design did they use is: naturalistic observation.
Research can be defined as the data or information collected by a researcher so as to reach or draw a conclusion.
Most researcher tend to make use of naturalistic observation research method because it help to effectively observe behavior as well as subjects in their natural environment.
Therefore the type of research design did they use is: naturalistic observation.
Learn more about research here:https://brainly.com/question/968894
#SPJ1
