Hypotheses

Question 1

What is experimental hypothesis?

Answer 1

A precise, testable statement about what is expected.

May also be called the alternative hypotheses.

Question 2

What is null hypothesis?

Answer 2

States that any differences is due to chance.

Question 3

Give an example of experimental hypothesis.

Answer 3

There will be a significant difference in the reaction times measured in cm on a ruler drop test between participants who drink 5 cups of coffee and participants who drink 5 cups of decaffeinated coffee.

Non-directional.

Question 4

Give an example of null hypothesis.

Answer 4

There will be no significant difference

Question 5

What is a one tailed experimental/alternative hypothesis?

Answer 5

Whereby the direction of the results is predicted.

Question 6

What is a two tailed experimental/alternative hypothesis?

Answer 6

Whereby a difference is predicted but not its direction.

Question 7

Give an example of a one directional

Answer 7

Participants who drink 5 cups of coffee will have faster reaction measured by cms on a ruler drop test than participants who drink 5 cups of decaffeinated coffee.