advantages and disadvantages of quasi experiment

Question 1

an advantage of a quasi experiment is a high degree of control
-why?

Answer 1

easier to eliminate extraneous variables
- carried out in the same controlled conditions as a laboratory experiment

Question 2

another advantage of a quasi experiment is that it is replicable
-why?

Answer 2

doesn’t rely on ‘one off’ or rare situations occurring
- when the independent variable is straightforward ( eg. gender, age, personality)
easy to repeat the study with larger groups of participants
this allows for the reliability to be checked

Question 3

a disadvantage of a quasi experiment is random allocation is not possible
-why?

Answer 3

random allocation to conditions is not possible
- by chance the two conditions could differ on a variable that might affect the dependant variable

Question 4

another disadvantage of a quasi experiment is difficulty finding samples- why?

Answer 4

if one of the conditions is rare it may be difficult to find a sample for them
- some traits within participants are quite hard to recruit the required