This is the most frequently used inferential test used to test ...

[codyclark]

This is the most frequently used inferential test used to test the difference between two means.
 
  a. analysis of variance c. Cohen's d test
  b. Student's t test d. the standard deviation

Question 2

Which of the following are assumptions of the t test that must be met?
 
  a. The data must be at least ordinal.
  b. The dependent variable must be normally distributed.
  c. Only two groups are compared.
  d. All of these are assumptions that must be met for the t test.

[hanadaa]

Answer to Question 1

B
The Student's t test is a very commonly used instrument for making inferences about the means in 2-group between subjects experiments.

Answer to Question 2

D
If the data are nominal, or if the dependent variable is not normally distributed, the t test is inappropriate. The t test can only be done for two groups.