Task 3: A researcher was interested in the effects on people’s mental health of participating in Big Brother (see Chapter 1 if you don’t know what Big Brother is). The researcher hypothesized that they start off with personality disorders that are exacerbated by being forced to live with people as attention seeking as them. To test this hypothesis, she gave eight contestants a questionnaire measuring personality disorders before they entered the house, and again when they left the house. A second group of eight people acted as a waiting list control. These people were short-listed to go into the house, but never actually made it. They too were given the questionnaire at the same points in time as the contestants.

The data are in BigBrother.dat. Conduct a mixed ANOVA on the data.