Hypothesis

Question 1

What is a research hypothesis?

Answer 1

Predicts a statistically significant effect of an IV on DV. (I.e. an experiment) or significant relationship between variables (I.e. correlation study)

Question 2

If a theory or existing evidence argues a particular direction of the predicted results. Is this a directional or a non-directional hypothesis?→ one tailed or two tailed?

Answer 2

Directional → one-tailed

Question 3

What is null hypothesis?

Answer 3

Predicts that a statistically significant effect or relationship will not be found.