To be able to conduct a t-test it is important:
A)That the independent- as well as the dependent variable is measured on a nominal or ordinal scale.
B)That the independent variable is measured on an interval- or ratio scale and the dependent variable is measured on a nominal- or ordinal scale.
C)That the independent- as well as the dependent variable is measured on an interval- or ratio scale.
D)That the dependent variable is measured on an interval- or ratio scale and the independent variable is measured on a nominal- or ordinal scale.

Question

Quizplus · Accepted Answer

For a t-test, the dependent variable should be measured on an interval or ratio scale (which allows for the calculation of means and standard deviations), and the independent variable typically categorizes groups (thus, nominal or ordinal scale).

To Be Able to Conduct a T-Test It Is Important