So my statistics group is doing our final project. Our research question is: Does caffeine affect short term memory?
We had 10 subjects do our experiment. We gave each of them a list of words and gave them 3 minutes to memorize the words. We then gave them 1 minute to write all the words they remember.
After that, we gave 5 of them the caffeinated coffee and the other 5 decaf. We then gave them a different list of words and gave them 3 minutes to memorize the words and another minute to write down the words they remembered.
The results look like this:
What statistics testing should I use?
It's kind of like difference of mean of difference because there is the before/after factor and also the caffeine/decaf. I really don't know what to do.
Thanks in advance.
We had 10 subjects do our experiment. We gave each of them a list of words and gave them 3 minutes to memorize the words. We then gave them 1 minute to write all the words they remember.
After that, we gave 5 of them the caffeinated coffee and the other 5 decaf. We then gave them a different list of words and gave them 3 minutes to memorize the words and another minute to write down the words they remembered.
The results look like this:
Caffeinated | Decaffeinated | ||
Subject # | Amount of words | Subject # | Amount of words |
1 | Before: 13 After: 15 | 6 | Before: 12 After: 11 |
2 | Before: 8 After: 9 | 7 | Before:10 After:11 |
3 | Before: 9 After: 8 | 8 | Before:7 After: 7 |
4 | Before: 8 After: 11 | 9 | Before:9 After: 8 |
5 | Before: 12 After: 12 | 10 | Before:10 After: 11 |
What statistics testing should I use?
It's kind of like difference of mean of difference because there is the before/after factor and also the caffeine/decaf. I really don't know what to do.
Thanks in advance.