A __________ Is a Single Number Representing the Degree of Relation

question 4

Multiple Choice

A __________ is a single number representing the degree of relation between two variables.

• A) mean
• B) median
• C) mode
• D) correlation coefficient

---

Definitions:

Independent Variable

In an experiment, the variable that is manipulated or changed by the researcher to observe its effect on the dependent variable.

Dependent Variable

A variable in an experiment that is expected to change as a result of manipulations of the independent variable.

Extraneous Variable

Any variable in a scientific experiment that is not the independent or dependent variable but may affect the results of the experiment if not properly controlled.

Random Assignment

A method used in experiments where participants are allocated to different groups purely by chance, minimizing pre-existing differences between those groups.