Your name______________________

Your TA's name__________________

Your data set number______________

Lab E

Lab E (Two-way between groups ANOVA)

An experimenter was interested in the effects of gender and arousal on a measure of aggressive strategies. Your data represent the number of aggressive responses for male and female subjects (B1 and B2 respectively) across three conditions of arousal: low, medium, and high (A1, A2, and A3, respectively). In your response to the questions, use the data set assigned to you by the teaching assistant.

1. Identify the independent and dependent variables.

2. State the null hypotheses in both words and symbols (for interaction, only words).

3. Perform an ANOVA and present the summary table for your analysis.

4. Draw conclusions warranted by the data.

5. Graph the interaction