Question

when psychological researchers use the correlational method to study variables, the degree of relation between two variables is expressed as a numerical value known as ______.

○ error variance

○ correlative conjunction

○ correlative code

○ correlational coefficient

Explanation:

To solve this, we analyze each option:

• "Error variance" refers to variability due to error, not the degree of relation between variables.
• "Correlative conjunction" is not a term related to the degree of relation in correlational research.
• "Correlative code" is not a recognized term for expressing the relation between two variables in this context.
• "Correlational coefficient" (e.g., Pearson's r) is the numerical value that expresses the degree of relation between two variables in correlational research.

Answer:

D. correlational coefficient