You are testing the effect of a novel drug aimed to reduce anxiety symptomology. You are interested in whether the drug treatment reduces anxiety symptomology compared to no treatment at all and psychotherapy. In addition, because the drug treatment is novel, you are also interested in whether the drug treatment, in combination with psychotherapy, would be reduce anxiety symptomology beyond that of either treatment alone. To test these hypotheses, you conduct a 2 (No Drug vs. Drug) 2 (No Therapy vs. Therapy) factorial-designed experiment. Thus, you have two independent variables crossed with one another, providing 4 groups. Your dependent variable is scores on an anxiety symptomology scale. Below is a table illustrating the groups. The data are located on Canvas, titled "New Anxiety Drug Treatment.

	No drug	Drug
No Therapy	Control Group No Drug + No Psychotherapy	Drug-Only Group Drug + No Psychotherapy
Therapy	Therapy-Only Group No Drug + Psychotherapy	Combination Group Drug + Psychotherapy

1. Assuming two-tailed tests, state your null and alternative hypotheses for the main effects and interactions. Note that because this is a factorial experimental design, there are multiple statistical hypotheses.

Main effect of Drug

H₀:

H₁:

Main effect of Therapy

H₀:

H₁:

Interaction between Drug and Therapy

H₀:

H₁:

2. Conduct the two-way ANOVA in SPSS and paste the output below.

3. Draw a conclusion from your statistical analysis. To receive full credit, you must state your decision about each null hypothesis, the value of the statistic for each hypothesis, and the probability of the statistic (i.e., either '<.05 or>.05') for each hypothesis in APA.

Drug Therapy Anxiety_Symptoms 2 No drug No Thera 55 3 No drug No Thera 97 4 No drug No Thera 80 5 No drug No Thera 79 6 No drug No Thera 108 7 No drug No Thera 63 8 No drug No Thera 91 9 No drug No Thera 46 10 No drug No Thera 34 11 No drug No Thera 98 12 No drug No Thera 29 13 No drug No Thera 55 14 No drug No Thera 79 15 No drug No Thera 71 16 No drug No Thera 93 17 No drug No Thera 77 18 No drug No Thera 72 19 No drug No Thera 58 20 No drug No Thera 78 21 No drug No Thera 89 22 No drug No Thera 63 23 No drug No Thera 131 24 Drug No Thera 52 25 Drug No Thera 83 26 Drug No Thera 49 27 Drug No Thera 59 28 Drug No Thera 61 29 Drug No Thera 7 30 Drug No Thera 22 31 Drug No Thera 42 32 Drug No Thera 82 33 Drug No Thera 93 34 Drug No Thera 78 35 Drug No Thera 43 36 Drug No Thera 46 37 |Drug No Thera 53 38 Drug No Thera 69 39 Drug No Thera 80 40 Drug No Thera 62 41 Drug No Thera 82 42 Drug No Thera 67 43 Drug No Thera 7743 Drug No Thera 77 44 Drug No Thera 23 45 Drug No Thera 44 46 Drug No Thera 104 47 Drug No Thera 52 48 Drug No Thera 54 49 Drug No Thera 107 50 Drug No Thera 69 51 No drug Therapy 20 52 No drug Therapy 31 53 No drug Therapy 66 54 No drug Therapy 52 55 No drug Therapy 5 56 No drug Therapy 26 57 No drug Therapy 10 58 No drug Therapy 28 59 No drug Therapy -3 60 No drug Therapy 29 61 No drug Therapy 16 62 No drug Therapy 18 63 No drug Therapy 43 64 No drug Therapy 35 65 No drug Therapy 45 66 No drug Therapy 17 67 No drug Therapy 34 68 No drug Therapy 21 69 No drug Therapy 59 70 No drug Therapy 50 71 No drug Therapy 3 72 No drug Therapy 11 73 No drug Therapy -1 74 No drug Therapy 54 75 No drug Therapy 31 76 No drug Therapy 10 77 No drug Therapy 34 78 No drug Therapy -13 79 Drug Therapy 9 80 Drug Therapy 25 81 Drug Therapy 17 82 Drug Therapy 55 83 Drug Therapy 69 84 Drug Therapy 15 85 Drug Therapy -2286 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 Drug Drug Drug Drug Drug Drug Drug Drug Drug Drug Drug Drug Drug Drug Drug Drug Drug Drug Drug Drug Drug Drug Drug Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy