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Evolution and Human Behavior

For your assignment, please read the following article:
Seltzer, L. J., Prososki, A. R., Ziegler, T. E., & Pollack, S. D. (2012). Instant messages vs. speech: Hormones and why we still need to hear each other. Evolution and Human Behavior, 33, 42-45.
The article can be found here:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3277914/
After reading the article, answer the following questions.
1 — What is the “big idea” behind this research?
2 — What is/are the specific hypotheses for the experiment that is reported?
3 — Identify the independent variable(s).
4 — Identify the dependent variable(s).
5 — What are the main results and conclusions of the study?
6 — Identify a potential weakness of the study.