TYPES OF EXPERIMENT

Question 1

Experimental method

Answer 1

manipulation of iv to have an effect on dv.

Question 2

types of experiments

Answer 2

field, natural, lab or quasi experiments

Question 3

laboratory experiments

Answer 3

experiment that takes place in a special environment whereby different variables can be carefully controlled.

Question 4

strength and limitations of laboratory experiment

Answer 4

+ high degree of control, iv has been precisely replicated leading to greater accuracy.
- low ecological validity, makes the situation artificial.

Question 5

field experiment

Answer 5

experiment conducted in a m ore natural environment, mnot in a lab but variables are still being controlled.

Question 6

strength and limitation of field experiment

Answer 6

+ naturalistic so more ecological validity,
- loss of control over extraneous variables so precise replication is not possible.

Question 7

quasi experiment

Answer 7

experiment where the iv has not been determined by the rresearcher but it naturally exists. example gender difference studies.

Question 8

strength and limitation of quasi experiment

Answer 8

+ controlled condition so high internal validity.
- cannot randomly allocate participants as the iv pre exists so there may be confounding variables.

Question 9

natural experiment

Answer 9

two levels of independent variable will occur naturally without the researcher’s influence

Question 10

strength and limitation of natural experiment

Answer 10

+ high external validity as real life situations
provides area for research which cannot be done due to ethical issues

• extraneous variables cannot be controlled