The hypothesis that posits no relationship between the variables in your study is the ______

A) directional hypothesis
B) nondirectional hypothesis
C) research hypothesis
D) null hypothesis

The null hypothesis posits that there is no relationship between the variables being studied, and is typically used as a baseline for comparison with the alternative hypothesis (the research hypothesis) which does predict a relationship between the variables. The directional and nondirectional hypotheses, on the other hand, both predict a specific direction of the relationship between variables (either positive, negative, or simply present), and are used in different types of studies.