“In identifying the source of the incongruent effect: Whether it is from the fearful face-happy body or happy face-fearful body compounds” by Chen et al. (2022) “Adults’ percepti

Can you please help me with questions #3 and #4 this assignment? Thank you!
McConnell, A. E., Brown, C. M., Shoda, T. M., Stayton, L. E., & Martin, C. E. (2011). Friends with benefits: On the positive consequences of pet ownership. Retrieved January 25, 2023, from https://www.apa.org/pubs/journals/releases/psp-101-6-1239.pdf
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?