Stistics ANOVA

  Anxiety scores for 5 veterans who received behavioral therapy146,144,148,149,148 •  
Anxiety scores for 5 veterans who received cognitive therapy145,145,14,2 148,147  • 
 Anxiety scores for 5 veterans who received biofeedback therapy155,158,154,156,157  •  
Anxiety scores for 5 veterans who received medication therapy146,148,152,149,147 
 

Before computing any analyses, state the null hypothesis and alternative hypothesis in words (not formulas).
Identify the factor and dependent variable.
Name the levels of the factor.
State the degrees of freedom between groups and explain how you calculated it by hand.
State the degrees of freedom within groups and explain how you calculated it by hand.
Identify the obtained F value using SPSS and report it in your answer document.
Identify the p value using SPSS and report it in your answer document.
Explain whether the F test is statistically significant. Explain how you know.
Explain what the psychologist can conclude about the relationship between different types of therapy and anxiety before conducting post hoc tests.

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Should the psychologist conduct a post hoc test? Why or why not? If post hoc testing is needed, conduct a Tukey HSD post hoc analysis in SPSS. Explain what the results tell you.

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