## Multiple choice questions

How many dependent variables does a two-way ANOVA have?

1. One
2. Two
3. Three
4. Four

What would the levels of the independent variables be for a two-way ANOVA investigating the effect of four different treatments for depression and gender?

1. 4 and 1
2. 2
3. 4 and 2
4. 6

How many independent variables were used and how were they measured in a three-way independent ANOVA?

1. Three independent variables all measured using the same entities
2. Three independent variables all measured using different entities
3. One independent variable (with three levels) measured using the same entities
4. One independent variable (with three levels) measured using different entities

Answer: Three independent variables all measured using different entities

Imagine we conducted a study that found that pedestrians were more likely to give money to a street beggar if the beggar had a cute and hungry-looking dog with them, and this effect was identical for both male and female pedestrians. If we calculated the difference between men and women in the no dog condition and plotted this value against the difference between men and women in the dog condition, which of the following values is most likely to represent the gradient of our graph?

1. 22.7
2. 33.8
3. 1
4. 0