It was hypothesized that there will be a difference in the average test score in Chemistry class between high schoolers who watched Breaking Bad (Group 1) and high schoolers who did not watch Breaking...

It was hypothesized that there will be a difference in the average test score in Chemistry class between high schoolers who watched Breaking Bad (Group 1) and high schoolers who did not watch Breaking Bad (Group 2).

Is this a non-directional or directional hypothesis?