Hypotheses

Question 1

What is a one-tailed(directional) hypothesis?

Answer 1

When you predict your results will go in a certain direction

Question 2

What is an example of a one tailed hypothesis?

Answer 2

People who have a good nights sleep will perform better in exams

Question 3

When do you use a one-tailed(directional) hypothesis?

Answer 3

When there has been previous findings/research on the topic which you are investigating

Question 4

What is a two-tailed(non-directional) hypothesis?

Answer 4

When the direction of the experiment is not predicted beforehand

Question 5

When would you use a two-tailed hypothesis?

Answer 5

When there is no previous research to allow you to direct your hypothesis in a certain way

Question 6

Give an example of a two tailed hypothesis.

Answer 6

There will be a difference between someone who has 8-10 hours of sleep vs someone who has less than 6 hours of sleep per night

Question 7

What is a null hypothesis?

Answer 7

When there is no relationship between the topics in question

Question 8

Give an example of a null hypothesis.

Answer 8

Question: Do cats care about the colour of their food?
Hypothesis: Cats express no food preference based on the colour

Question 9

What is an aim?

Answer 9

Identification of the purpose of the investigation