Variables and Hypotheses

Question 1

Hypotheses

Answer 1

Predictions a researcher makes at the beginning of an
investigation regarding it’s outcome.

A researcher will always make two hypotheses at the outset of a study.

Question 2

NULL HYPOTHESIS:

Answer 2

States the independent variable will have no effect on the
dependent variable. It also states that any observed effect will be due to chance.

Question 3

ALTERNATIVE HYPOTHESIS:

Answer 3

States the independent variable will have an impact on the dependent variable.

Question 4

DIRECTIONAL HYPOTHESIS:

Answer 4

Will state how the independent variable will impact the dependent variable.

A directional hypothesis will be chosen if previous research has been conducted on the topic.

Question 5

NON-DIRECTIONAL HYPOTHESIS:

Answer 5

Will state that the independent variable will impact the dependent variable but not specify how.

A non-directional hypothesis will be chosen if no previous
research has been conducted on the topic.