Using the following table, provide three examples of a simple oneway ANOVA, two examples of a twofactor ANOVA, and one example of a threefactor ANOVA. Be sure to identify the grouping and the test variable (just like the book).
Design 
Grouping Variable(s) 
Test Variable 
Simple ANOVA 
For example:Four levels of hours of training – 2, 4, 6, and 8 hours 
Typing accuracy 









Twofactor ANOVA 
For example: Two levels of training and gender (2 x 2 design) 
Typing accuracy 






Threefactor ANOVA 
For example: Two levels of training and two of gender and three of income 
Voting attitudes 


2. A researcher reports an Fratio with df= 2, 12 for a repeated measures of ANOVA.
 How many treatment conditions were compared in the study?
b. How many individuals participated in the study?
3. An analysis of variance was used to evaluate the mean differences from a repeatedmeasures research study. The results were reported as F(3,24)=6.40.
 How many treatment conditions were compared in the study?
b. How many individuals participated in the study?
4. Create a drawing or plan for a 2 x 3 experimental design that would lend itself to a factorial ANOVA. Be sure to identify the independent and dependent variables.
5. Firstborn children tend to develop language skills faster than their younger siblings. One possible explanation for this phenomenon is that firstborns have undivided attention from their parents. If this explanation is correct, then it also reasonable that twins should show slower language development than single children and that triplets should be even slower. Davis found exactly this result. The following hypothetical data demonstrate the relationship. The dependent variable is a measure of language skill at age 3 for each child. Do the data indicate any significant differences? Test with α=0.05.
Single child 
Twin 
Triplet 
8 
4 
4 
7 
6 
4 
10 
7 
7 
6 
4 
2 
9 
9 
3 
The deadline for this assignment is 11:59 PM EST on Sunday of Week 6
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