4. The Three R's are a set of principles that psychologists are supposed to follow in order to clarify the moral guidelines of animal research. Continue using the PPt. to fill in the chart below. Ethical Standard Reduction Refinement Replacement Explanation How might this affect research? Directions: Listed below are some questions IB could give you about animal research. Which study would you use for each? 1. Discuss the value of animal models to provide insight into the role of the brain and behavior. 2. Discuss the value of animal models to provide insight into the role of hormones on behavior. 3. Discuss the value of animal models to provide insight into the role of genes on behavior. 4. Discuss ethical considerations in animal research on the brain and behavior. 5. Discuss ethical considerations in animal research on hormones and behavior. 6. Discuss ethical considerations in animal research on the role of genes on behavior.