a) You want to see if there is a difference in memory test scores between normal
ID: 3180108 • Letter: A
Question
a) You want to see if there is a difference in memory test scores between normal controls, patients with mild cognitive impairment, and patients with dementia. Test scores are measured
on a continuous scale. The sample size is 44 controls, 37 MCI, 36 AD. What test would you use?
b) Blood pressure measurements are collected on 5 students before and after a test. How would you test is there is a significant difference in blood pressure between the two time points?
Which test would you use?
Possible Tests:
Independent samples t-test
One sample t-test
Paired samples t-test
ANOVA
Kruskal Wallis Test
Signed Rank Test
Rank Sum Test
Chi-Square Test
Fisher Exact Test
Linear regression
Shapiro-Wilke Test
Explanation / Answer
a)for a as there are 3 variables asn categories are indpendent we will use ANOVA
b) here as subjects are same ; hence we will use Paired samples t-test
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