The Kruskal-Wallis Test Is to Be Used to Determine Whether

question 18

Multiple Choice

The Kruskal-Wallis test is to be used to determine whether there is a significant difference in the satisfaction rating (alpha = 0.05) between three brands of boxed cake mix.Shoppers were asked to rate their satisfaction on various attributes and an aggregate satisfaction score ranging from 1-50 was computed.The following data were obtained: $$\begin{array} { c c c c c c } \text { Cake Mix A } & 19 & 21 & 25 & 22 & 33 \\\text { Cake Mix B } & 30 & 24 & 28 & 31 & 35 \\\text { Cake Mix C } & 39 & 32 & 41 & 42 & 27\end{array}$$ For this test, how many degrees of freedom should be used?

• A)3
• B)2
• C)4
• D)8
• E)1

---

Definitions:

Contingency Management Training

A behavioral therapy technique that modifies behavior by altering the consequences, specifically rewards and punishments, associated with actions.

Aversion Therapy

A form of psychological treatment where unpleasant stimuli are associated with undesirable behaviors to discourage those behaviors.

Internet Use Disorder

A proposed disorder marked by excessive and problematic use of the internet, leading to significant impairment or distress in daily life.

DSM-5

As the ultimate reference for diagnosing mental disorders, the Fifth Edition of the Diagnostic and Statistical Manual of Mental Disorders is utilized by medical experts.