Sampling

Question 1

Random Sampling

Answer 1

Is where a sample is selected at random

Question 2

Strengths of random sampling

Answer 2

Unbiased- everyone has the same chance to be involved and it is more representative

Question 3

Weaknesses of random sampling

Answer 3

More complex, time consuming

Question 4

Opportunity Sampling

Answer 4

Most used technique, taking a sample from whoever is available at the time.

Question 5

Strengths of Opportunity Sampling

Answer 5

Easiest method, quick and cheap

Question 6

Weaknesses of Opportunity Sampling

Answer 6

Can be biased

Question 7

Self Selected Sampling

Answer 7

Pls become apart of a study because of volunteering when asked or in response to an advert

Question 8

Strengths of Self Selected Sampling

Answer 8

Easy, can advertise for people with specific characteristics

Question 9

Weaknesses of Self Selected Sampling

Answer 9

Unrepresentative, volunteer bias

Question 10

Snowball Sampling

Answer 10

Find one pps and ask them if they know anyone else who would like to take part

Question 11

Snowball Sampling Strength

Answer 11

Effective at targeting difficult to access pps, can request pps that have specific features

Question 12

Weaknesses of snowball sampling

Answer 12

Time consuming, ethnocentric