Types Of Experiments

Question 1

Laboratory experiments

Answer 1

• Highly controlled environment • randomly allocate participants to different conditions to avoid bias
• experimental group - manipulation of the iv
controlled group - what the results of experimental group will be compared to

Question 2

Strength of Lab experiments

Answer 2

• High control over extraneous variables
• can easily be repeated

Question 3

Limitations of lab experiments

Answer 3

• External validity
• lack of generalisability
• demand characteristics
• low mundane realisms

Question 4

Natural experiments

Answer 4

Researcher measures IV on DV, but researcher has no control over Ir and can not change it

Question 5

Strength of natural experiments

Answer 5

High external validity because they involve real world study.
Unique research opportunities - provides opportunities for research that may n not have happened due to practical issues.

Question 6

Limitation of natural experiment

Answer 6

Lack of control
May not be randomly allocated to experimental conditions

Question 7

Quasi experiments

Answer 7

Has a iv based on existing differences - eg age

Question 8

Strength of quasi

Answer 8

reliable- can be replicated due to of high levels of control
High internal validity- high control setting

Question 9

Limitation of quasi

Answer 9

Can not randomly allocate participants there will be confounding variables

Question 10

Confounding variable

Answer 10

A extraneous variable that hasn’t been controlledso it affects the DV