Hypotheses come in two forms. Confusing, I know, but it's not too tricky, I promise.
Firstly, there is Directional Hypothesis, which states exactly what the result might be, based on the Independent Variables. Generally, it will be "Situation A will be preffered over Situation B" sort of thing. It states there will be either a positive or negative correlation between the IV's.
The other type is Non-Directional Hypothesis, in which the way the results goes doesn't matter so much, more it is the fact that there will be a difference. In this case, it will be "Either Situation A or Situation B will be preffered." So you get the same sort of thing, it just states there will be a difference, but the 'victor' will not be evident. It does not a predict a positive or negative correlation, more that there will be a correlation.
Still confused? Head over here (http://www.psychexchange.co.uk/glossary/directional-hypothesis-343/) for a more precise way of explaining it, or just Google it!
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