If a research hypothesis posits that there is a direct relationship between two variables,the test is ______.

A) one-tailed
B) two-tailed
C) negative
D) nondirectional

Research Hypothesis

An assertion made by a researcher that serves as the tentative answer to the research question, suggesting a potential outcome of the study.

Direct Relationship

A relationship between two variables where an increase in one variable leads to an increase in the other variable.