Sampling Techniques Flashcards
What is opportunity sampling?
Using people you have the opportunity to study (a psychology teacher using his students)
What is volunteer sampling?
Participants select themselves- usually in response to an advertisement
What is random sampling?
Getting a list if the target population and selecting names randomly
What are the advantages of volunteer sampling?
Specific people come forward when it would be hard to find them. Eg people who’ve married their cousins
What are the disadvantages of volunteer sampling?
Unrepresentative of target population as not everyone will respond- only people interested or have enough time will respond
What are the advantages of opportunity sampling?
Cheaper and easier as the people are readily available to you
What are the disadvantages of opportunity sampling?
1 people you know aren’t representative of the target population
2 ethical issues- people might feel pressured into taking part
What are the advantages of random sampling?
Will be representative if the sample is large enough
What are the disadvantages of random sampling?
1 time consuming
2 may still get an unrepresentative sample