different levels of education remember a different number of items in the middle of a list. They selected two groups of people with n=6 in each group. Group 1 has 12 years of formal education and Group 2 has 20 or more years of formal education. The table below shows the number of words each group remembered from the middle 10 words on the list. Group 1 Group 2 4 5 7 7 2 3 4 8 3 6 6 3 a. Is there a significant difference in the number of words remembered from the middle of the list in the two groups? Use an α = .05. b. Compute r2 to measure effect size
Cognitive psychologists know that memory for the words in the middle of a list is poorer than memory for the words at the beginning or end of the list. Researchers wanted to see if people with different levels of education remember a different number of items in the middle of a list. They selected two groups of people with n=6 in each group. Group 1 has 12 years of formal education and Group 2 has 20 or more years of formal education. The table below shows the number of words each group remembered from the middle 10 words on the list.
Group 1 Group 2
|
4 |
5 |
|
7 |
7 |
|
2 |
3 |
|
4 |
8 |
|
3 |
6 |
|
6 |
3 |
a. Is there a significant difference in the number of words remembered from the middle of the list in the two groups? Use an α = .05.
b. Compute r2 to measure effect size.
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