Introduction

Question 1

What is the experimental method?

Answer 1

Manipulating one variable to determine if these changes cause changes in another variable

Question 2

What is a research aim?

Answer 2

A general statement about what the researcher intends to investigate

Question 3

What does it mean to operationalise a variable?

Answer 3

To be precise and clear about what is being manipulated or measured

Question 4

What does an experimental hypothesis predict?

Answer 4

That the expected effect of the manipulated variable on the outcome is statistically significant

Question 5

What does a null hypothesis predict?

Answer 5

That there will be no effect in a study

Question 6

When will a hypothesis be directional?

Answer 6

When there has been previous research so the investigator will have an idea of what the results of the study will look like

Question 7

When will a hypothesis be non directional?

Answer 7

When there has been no previous research done on the topic so the researcher doesn’t know what the results of the experiment will be