Describe someone that you know very well who is very different from you on the trait that you chose to focus on in the worksheet for Part I. Write brief paragraph about the ways th

Hello, thank you so much for your help! I have been looking for hours for an experimental design method research necessary for this assignment with great difficulty. Not sure my topic lends itself to this type of research. I believe some empirical studies can be experimental. Would this one count? and is so could you please guide me through? Thank you so much!!
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5482437/
The articles should not be correlational studies or review articles; you should only find articles that use the experimental method for this assignment.
How were the participants selected? Were the participants representative of the larger population?
How were the participants assigned to groups? Did the groups start out the same? Was there any bias in how the participants were assigned to groups?
What did the researchers do to ensure the experimental procedures were equal across the groups? If they did not ensure the procedures were equal, what should the researchers have done? Did the researchers follow APA ethical guidelines in conducting the research?
What were the independent and dependent variables of the experiment?
What was the outcome of the experiment?
How can you use the results of the research in your final paper?