Sampling of Participants

Question 1

SAMPLING TECHNIQUE

Answer 1

method used to obtain participants from target population

Question 2

SAMPLE

Answer 2

group selected to represent target population

Question 3

VOLUNTEER SAMPLE

Answer 3

Ps put themselves forward to participate in study after seeing advertisement
+ reduces cost of recruiting Ps and saves time
+ easy access to volunteers through social media platforms
- unlikely to be representative/limited generalisability
- difficult reaching specific demographics

Question 4

OPPORTUNITY SAMPLE

Answer 4

Ps chosen because they’re available at the time
+ may lead to larger sample
+ quick and easy
- Ps may reject
- may not be representative of target population - sampling bias - findings lack external validity as less generalisable

Question 5

RANDOM SAMPLE

Answer 5

all members of population are identified - fixed amount are selected in random, unbiased way (e.g names in a hat)
+ reliable
+ unbiased
- expensive
- time consuming

Question 6

POPULATION

Answer 6

a group sharing one or more characteristics - where a sample is drawn from

Question 7

GENERALISABILITY

Answer 7

the extent to which findings from a study can be applied to the target population being investigated

Question 8

REPRESENTATIVE

Answer 8

typical of a setting, situation or group of people - therefore generalisable
- larger sample = increase reliability/representative/generalisable