Types of Experiment

Question 1

What are the four types of experiments?

Answer 1

Lab
Natural
Field
Quasi

Question 2

What is a lab experiment?

Answer 2

An experiment conducted in a highly controlled environment

Question 3

What is a field experiment?

Answer 3

An experiment carried out in a natural environment. The IV is still manipulated but it is done in an environment which is typical to the behaviour being studied

Question 4

What is a natural experiment?

Answer 4

Also carried out in a natural environment however the IV is not directly manipulated. Instead the IV is naturally occurring

Question 5

What is a Quasi experiment?

Answer 5

Have an IV that is based on an existing difference between people for instance age or gender. No one has manipulated the variable it simply exists

Question 6

Strengths and weaknesses of lab experiment

Answer 6

Stengths
Easily replicated
High control over extraneous and confounding variables ( more certain of cause and effect)

Weaknesses
Lack generalisability
artificial not real life
low external validity
Lacks mundane realism
ademand characteristics as they know they are being watched

Question 7

Strengths and weakness of field experiments

Answer 7

Strengths
higher mundane realism
High external validity

Weakness
Harder to control confounding and extraneous variables
Ethical issues no consent

Question 8

Strengths and weaknesses of natural experiment

Answer 8

Strength
Provides opportunity for research that normally cant be done for ethical or practical issues
High external validity as its real world

Weaknesses
Events happen rarely
Unsure cause and effect
May be done in a lab so lacks mundane realism

Question 9

Strengths and weaknesses of quasi experiment

Answer 9

Strength
often cardied out in controlled settings so can be replicated

Weakness
Iv not deliberately changed so cant claim IV caused observed change