Psychological Investigations (Qs) Flashcards Preview

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Flashcards in Psychological Investigations (Qs) Deck (10):
0

Research methods can be divided into two categories, what are they?

Experimental and Non-experimental methods.

2

Examples of experimental methods (3)

-Lab experiments
-Field experiments
-Quasi experiments

3

Examples of non-experimental methods (4)

-Observation
-Self-report
-Correlation
-(Case Study)

4

What variable is manipulated?

Independent variable (cause)

5

What variable is measured?

Dependent variable (effect)

6

Which is the aim and hypothesis?
1) To find out whether playing COD makes boys aggressive.
2) Boys who spend at least 2 hours a week playing COD will score higher on the "aggressive attitude" rating scale than boys who have never played COD.

1= Aim
2= Hypothesis

7

Give an example of an alternate hypothesis about alcohol and time taken to stop the car.

There will be a DIFFERENCE (experiment) between the time taken to stop the car by a person who has consumed 3 units of alcohol and people who have not consumed alcohol.

8

Give an example of a null hypothesis about alcohol and time taken to stop the car.

There will be a NO DIFFERENCE (experiment) between the time taken to stop the car by a person who has consumed 3 units of alcohol and people who have not consumed alcohol.

9

What is an extraneous variable and give examples?

Anything that could affect the DV other than the IV. E.g. Situational variables- environmental conditions (heat)

10

How can psychologists minimise the effect of extraneous variables?

Disguise the true purpose of the experiment- breaking ethical issue (deception) so that they would stop guessing the aims.