When Two Variables Are ______________ It Means That They Have

question 160

Short Answer

When two variables are ______________ it means that they have been combined in such a way that we can't determine which one had an effect on the dependent variable.

Identify and describe methods for selecting sample populations.

Understand the distinction between parameters and statistics.

Describe the process and importance of stratified sampling in research.

Explain the significance of random assignment in experimental design.