Discussion Post: Global Psychology
1. Define the ratchet effect and generate an example for it (excluding the example of the hammer in the textbook).
2. There are three explanations posited to explain how primates developed such big brains. Name the three explanations and generate a study design that tests these competing explanations.
The response must include a reference list. Using Times New Roman 12 pnt font, double-space, one-inch margins, and APA style of writing and citations.