For each of the following scenarios identify its type of sta
For each of the following scenarios, identify its type of statistical design from the list:
One Mean
B anova
2 Repeated Measures
W anova
Chi-square Test of Association
2 Independent
BB anova
Regression
BW anova
Correlation
WW anova
A crossover study was conducted to investigate whether oat bran cereal helps to lower serum cholesterol levels in hypercholesterolemic males. Fourteen such individuals were randomly placed on a diet that included either oat bran or corn flakes; after two weeks, their low-density lipoprotein (LDL) cholesterol levels were recorded. Each man was then switched to the alternative diet. After a second two-week period, the LDL cholesterol level of each individual was again recorded. What analysis should be used to test whether oat bran cereal helps lower serum cholesterol level in hypercholesterolemic males?
Solution
Since the subjects remained same and we took the same measures on the subjects applying two treatments, to check whether the treatments have effects or not we can use a paired sample t-test.
