Hypotheses

Question 1

What’s a hypothesis?

Answer 1

It’s a testable statement or prediction of the outcome of the research. It predicts the interaction between the IV and DV. There’s 2 types-

• Alternative or experimental
• Null Hypothesis

Question 2

What’s are alternative/experimental hypothesis?

Answer 2

This is the hypothesis that predicts the effect of the IV on the DV, there’s 2 further subtypes-

• Directional
• Non directional

Question 3

What’s a directional hypothesis?

Answer 3

It predicts the direction in which the results are expected to go (E.G. listening to loud noises decrease the number of words recalled from a list of 20 words).
Also known as one tailed hypothesis.

Question 4

What’s a non-directional hypothesis?

Answer 4

It doesn’t state a direction but simply states that one factor will affect another, or that there will be a difference between 2 sets of scores without saying which direction that difference will be. (E.G. listening to loud noise will affect the number of words recalled from a list of 20 words).
Also known as two tailed hypothesis.

Question 5

What’s a null hypothesis?

Answer 5

It’s a statement of no affect (E.G. listening to loud noise will have no effect on the number of words recalled from a list of 20 words).