Which of the following is a measure of relationships between variables in research?

The measure of relationships between variables in research is best represented by hypothesis testing. Hypothesis testing allows researchers to evaluate and draw conclusions about the relationships or differences between variables based on sample data. It typically involves formulating a null hypothesis, which posits no effect or relationship, and an alternative hypothesis, which suggests the presence of an effect or relationship. By analyzing the data, researchers can determine whether there is statistically significant evidence to reject the null hypothesis, thereby providing insight into the relationships among the variables being studied.

In the context of research, this process helps in understanding correlations, causations, and the dynamics between variables, making hypothesis testing a foundational method for empirical investigation and analysis.