Diana wants to see if heat causes happiness. She asks 100 pa…

Diana wants to see if heat causes happiness. She asks 100 participants to come to the laboratory, and as they walk in, she asks each person to choose a warm booth or a cool booth. On the basis of their choices, participants spend 20 minutes in one or the other booth before rating their levels of general happiness. What’s wrong with Diana’s experiment?

A graduate student in psychology is exploring which stimuli…

A graduate student in psychology is exploring which stimuli cause rats to experience nausea. The student notices that rats associate the smell of spoiled foods with nausea quicker than they associate bright lights with nausea. The rats the student is studying were born and raised in a laboratory and have never lived outside their cages. How would an evolutionary psychologist explain this?