Problem
There are three hallmark features of an experimental study. They are:
• Manipulation of the independent variable.
• Control groups
• Random assignment of participants to groups.
1) Briefly define (in own words) each of these three hallmark features of an experimental study.
2) Next, explain why each of these hallmark features is important for conducting a valid experimental study.
3) Then, create own example of an experimental study. How would apply these hallmark features to your hypothetical experimental study? Be specific. Include a brief statement of what research results might be.
4) Explain the potential consequences of failing to incorporate these features into study. Be specific as to how this would relate to study example and the conclusions they might draw.
5) Finally, describe how it might look at the same research topic by conducting a survey, observation, or a correlational design.