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HOW ARE INDEPENDENT SAMPLES T-TESTS AND ONE-WAY ANOVAS SIMILAR? HOW DO THE TWO TESTS DIFFER?

HOW ARE INDEPENDENT SAMPLES T-TESTS AND ONE-WAY ANOVAS SIMILAR? HOW DO THE TWO TESTS DIFFER?

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Author: Christine Farr
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1. How are independent samples t-tests and One-way ANOVAs similar?  How do the two tests differ? (Points : 12)            
  
Question 2.2. What is the F-ratio?  That is, what makes up the top and bottom portions of the F-ratio? (Points : 10)            
 
Question 3.3.A social psychologist conducted a study examining the effectiveness of two persuasion techniques. She found the following information in her ANOVA table:
SS between = 45.55
SS within  =   30.22
SS total  =     75.77
Using eta squared, calculate the effect size for her study?  What does this mean? (Points : 10)            
 
Question 4.4.A researcher is interested in how caffeine affects stress.  One group gets no caffeine and the other gets 3 cups of coffee.Complete the ANOVA table 
ANOVA Summary Table

Source

SS

df

MS

F

A-group

150

1

S/A (error)

25

18

Total

175

19

Fill-in the missing A-group MS value:
(Points : 5)            
 
Question 5.5.A researcher is interested in how caffeine affects stress.  One group gets no caffeine and the other gets 3 cups of coffee.Complete the ANOVA table
ANOVA Summary Table

Source

SS

df

MS

F

A-group

150

1

S/A (error)

25

18

Total

175

19

Fill-in the missing S/A MS value:
(Points : 5)            
 
Question 6.6.A researcher is interested in how caffeine affects stress.  One group gets no caffeine and the other gets 3 cups of coffee.Complete the ANOVA table
ANOVA Summary Table

Source

SS

df

MS

F

A-group

150

1

S/A (error)

25

18

Total

175

19

(more)
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