Researchers compared the effectiveness of a mood induction technique (exposure to depressing film footage) across 3 different groups of 11 participants each: 1) 0 minutes exposure (Control Group), 2) 10 minutes exposure, & 3) 20 minutes exposure. The response variable is the score on the Beck Depression Inventory (higher score = more depressed mood).
SSTOTAL = 368
State whether the results warrant additional analysis (post hoc analyses). Explain why or why not,and explain why such analyses would be needed.
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