Does laughing really reduce stress? Research suggests that the dopamine that is released during laughing may reduce people's stress response. I decide to test this hypothesis myself and have one group of people watch a hilarious movie for 30 min. and another group of people watch a boring documentary for 30 min. After the watching, each group is given a stress test where higher numbers indicate higher stress. Does laughing reduce stress? Test at a = .05. Movie groups (1= Hilarious, 2 = Documentary) Stress Scores 241 161 265 172 254 251 162 166 255 168 264 250 264 155 256 Calculate Cohen's d and then describe the result in terms of the specific IV and DV