If you were to hypothesize that there is a positive relationship between reaction time and problem-solving ability,you would have a ______.

A) directional research hypothesis
B) nondirectional research hypothesis
C) null hypothesis
D) hypothesis type that cannot be determined

A directional research hypothesis specifies the direction of the relationship between two variables, in this case, a positive relationship between reaction time and problem-solving ability. A nondirectional research hypothesis does not specify the direction of the relationship, and a null hypothesis suggests that there is no relationship between the variables. The hypothesis type cannot be determined without further information.