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What are the two types of experimental hypotheses?
Directional and non-directional
These hypotheses can also be referred to as…
One or two tailed
What does a directional hypothesis predict?
The specific nature and direction of the experiment
A hypothesis can be directioned if there is…
Past research or an accepted theory on the topic
What do directional hypotheses typically contain?
Less, more, increase, decrease, positive, negative
Non-directional hypotheses predict a…
Difference will exist
The absence of previous research or inconclusive past research…
Prevents a prediction of precision