The Appropriate Correlation Coefficient for Measuring the Direction and Strength

question 12

Multiple Choice

The appropriate correlation coefficient for measuring the direction and strength of the linear relationship between one continuous and one dichotomous variable is ______.

• A) the Spearman rank-order correlation coefficient
• B) the point-biserial correlation coefficient
• C) the phi correlation coefficient
• D) none of these

---

Definitions:

Road Construction

The process of building or maintaining roads including the design, grading, paving, and lighting.

Vegetation

Plants in general, or a plant community of a specific area, which cover the ground and contribute to the local ecosystem.

Species Extinct

A condition in which no individuals of a species are left alive, leading to the permanent loss of that species from biodiversity.

Habitat Destruction

The process by which natural habitats are rendered unable to support the species present, leading to a loss of biodiversity.