Participants with an intense fear of snakes received one of four treatments. Some worked with a model who handled a four-foot king snake and encouraged others to imitate her. Others watched a film of adults and children who enjoyed progressively closer contact with a king snake. A third group received desensitization therapy, and a fourth group received no treatment, serving as a control group. The following table shows the number of times each participant approached a king snake after treatment.

Model

Film

Desensitization

Control

29

22

21

13

27

18

17

12

27

17

16

9

21

15

14

6

In your explanation, identify the independent variable and its levels.Identify the dependent variable.Describe the five-step process of null hypothesis significance testing with a one-way ANOVA.Include your null hypothesis, alternative hypothesis, and your decision on the hypotheses.Use the Tukey Honestly Significant Difference (HSD) Test to test the following six pairwise comparisons for significance at .05(Model-Film, Model-Desensitization, Model-Control, Film-Desensitization, Film-Control, Desensitization-Control).Explain your results in the narrative.You should address if there was a difference in the effectiveness of the treatments and which treatment was more successful.You should explain how the control group compared to the others.