In the example below, which is an example of an ‘actual’ Latin Square? Why? If y
ID: 3222535 • Letter: I
Question
In the example below, which is an example of an ‘actual’ Latin Square? Why? If you used every condition order that was generated by this Latin Square, how many total condition orders would you be exposing all the volunteers in your study to?
A B C D
A
D
B
D
E
A
B
C
D
E
A
C
B
D
E
D
C
B
A
E
B
C
E
E
A
B
C
D
E
A
A
C
D
E
B
B
C
D
E
A
C
E
A
B
D
D
E
A
B
C
D
E
B
B
C
D
A
E
B
C
C
D
D
A
B
C
D
E
A
B
C
D
E
A
B
C
D
E
A
B
E
A
B
C
D
E
A
B
C
D
E
A
B
C
D
E
B
A
C
D
A
D
B
D
E
A
B
C
D
E
A
C
B
D
E
D
C
B
A
E
B
C
E
E
A
B
C
D
E
A
A
C
D
E
B
B
C
D
E
A
C
E
A
B
D
D
E
A
B
C
D
E
B
B
C
D
A
E
B
C
C
D
D
A
B
C
D
E
A
B
C
D
E
A
B
C
D
E
A
B
E
A
B
C
D
E
A
B
C
D
E
A
B
C
D
E
B
A
C
D
Explanation / Answer
Answer: Option B Reason: In a Latin-square design each letter must come once and only once in eaxh row and each column
In this configuration, each volunteer would be exposed to 5 condition orders which implies totally 25 exposures.
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