Experiment

Question 1

What is an experiment

Answer 1

Seeing the effect an independent variable has an the dependent variable with a comparison of conditions

Question 2

Lab experiment

Answer 2

Manipulating the IV with a controlled environment
+ high validity and reliability as it is a controlled environment reducing extraneous variables so we can establish cause and effect
- lacks ecological validity due an artificial environment and low internal validity as participants are aware of the research causing demand characteristics

Question 3

Field experiment

Answer 3

Manipulating the IV with a natural environment
+ high ecological validity, high internal validity as they are not affected by demand characteristics
-low internal validity and reliability as it is not a controlled environment

Question 4

Quasi experiment

Answer 4

Naturally occurring IV in a controlled environment
+ high ethics due to no manipulation and free from researcher bias
- lacks control of the IV so we can’t establish cause+effect and time consuming to collect the sample

Question 5

Repeated measures

Answer 5

Same participants in each conditions
+ no individual differences and isn’t consuming
- order effects as pps would get more tired and is more time consuming

Question 6

Independent measures

Answer 6

Different participants across each condition
+no order effects and less time consuming
- need more participants and individual differences may affect the results

Question 7

Matched pairs

Answer 7

Different participants in each conditions but have a matched pair depending on their age or gender etc.
+ no order effects as its less time consuming and is more generalisable to our target population
- hard to establish pairs and time consuming

Question 8

What are order effects

Answer 8

If the participants get worse during an experiment it is due to fatigue and borders
If the participants get better during an experiment it is due to practice