Dr.Hinson wants to investigate if rats fed a diet enriched with omega will do better at a maze learning task then when these same rats are given a normal diet.He has a total of 30 rats for his experiment.What type of statistical test should Dr.Hinson use in analyze his data?
A)one-sample z test
B)independent-groups t test
C)correlated-groups t test
D)Pearson correlation

Question

Quizplus · Accepted Answer

In this experiment, Dr. Hinson wants to compare the maze learning performance of the same group of rats when fed two different diets (normal and enriched with omega). Therefore, this is a repeated measures design (or within-subjects design), and the same participants (i.e., rats) are exposed to both the control and experimental conditions. The correlated-groups t test is the appropriate statistical test to analyze the differences in maze learning performance between the two diets because it compares the means of two related (or correlated) groups of scores (i.e., the same rats tested in two different conditions). This test takes into account individual differences between the rats and increases the statistical power of the analysis.

DrHinson Wants to Investigate If Rats Fed a Diet Enriched