Experimental method

Question 1

What do experiments require

Answer 1

Controlled conditions
IV and DV
At least 2 conditions for the IV

Question 2

How do you operationalise IV and DV

Answer 2

IV - State how to manipulate IV

DV - State how to measure variable

Question 3

What is a hypothesis

Answer 3

Statement predicting the outcome of a study

Question 4

When is a directional hypothesis used

Answer 4

When there is previous research

Question 5

State how to give a directional hypothesis

Answer 5

There will be a significant increase/decrease in DV(state how to measure) in IV1(operationalise the condition) compared to IV2(operationalise the condition)

Question 6

When is a non directional hypothesis used

Answer 6

When there is no previous research/inconclusive research

Question 7

State how to give a non directional hypothesis

Answer 7

There will be a significant difference in DV (state how it’s measured) in IV1 (operationalise the condition) compared to IV2 (operationalise the condition)

Question 8

State how to give a null hypothesis

Answer 8

There is no relationship/no difference in DV (state how its measured) in IV1 (operationalise the condition) compared to IV2 (operationalise the condition)