A psychologist at a private mental health facility was asked to determine whether there was a clear difference in the length of stay for patients with different categories of diagnosis. Looking at the last seven patients in each of the three major categories, the results (in terms of weeks of stay) were as follows. Using the data below, test whether the length of stay for patients vary based on category of diagnosis

MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
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Hello, I have seen conflicting results online. Could you please help me understand what ANOVA to run? It is between or within subjects?

 

A psychologist at a private mental health facility was asked to determine whether there was a clear difference in the length of stay for patients with different categories of diagnosis. Looking at the last seven patients in each of the three major categories, the results (in terms of weeks of stay) were as follows. Using the data below, test whether the length of stay for patients vary based on category of diagnosis.

 

 Diagnosis Category 

Affective Disorders 

Cognitive Disorders 

Drug-related Conditions 

7

12

8

6

8

10

5

9

12

6

11

10

9

11

9

5

10

11

6

9

12

 

 

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