25 25 20 15 10 10 5 Happiness Scores by Gender and Number of Therapy Sessions Attended 0 No Therapy 2 Sessions 4 Sessions Male Female According to the graph above, what conclusion can we make? It would have been better to conduct two separate one-way ANOVAs. O The researcher conducted a 0 x 2 x 4 ANOVA. O The researcher likely found a significant interaction effect. O The researcher used a within-subjects design.