Raewyn is studying people who have experienced a hurricane. The participants in her experimental group were present during Hurricane Sandy in the United States. They are showing signs of heightened depression, startle responses, and sleep problems compared to participants in the control group. What type of research design is Raewyn using

Imagine a child who consistently gets mediocre grades and is often picked last for a team when games are played at recess. however, he likes to make silly jokes and play pranks, and he notices that people laugh when he does those things. the child starts to think that others are laughing with him, not at him. this is part of the process that charles cooley