What Are Subject Variables and How Do They Affect the Interpretation

question 40

Essay

What are subject variables and how do they affect the interpretation of results?

---

Definitions:

Population

The full set of subjects or entities analyzed in a statistical investigation.

Experimental Studies

Research designs that involve the manipulation of one or more variables to determine their effect on one or more outcome variables.

Observational

Relating to the collection of data by observing and measuring phenomena as they occur naturally, without manipulation or intervention.

Categorical Variable

A variable that can take on one of a limited, and usually fixed, number of possible values, assigning each individual to a particular group or category.