Sampling Flashcards
1
Q
Random sample
A
Equal chance of selection, lottery
2
Q
Systematic sample
A
Selecting every nth person from a list
3
Q
Stratified sample
A
Sample reflects the proportion of people in different population strata
4
Q
Opportunity sample
A
Choosing whoever is available
5
Q
Volunteer sample
A
Participants self-select e.g advised
6
Q
Potentially unbiased, controls cvs/evs. Time consuming, may not work
A
Random sample
7
Q
Objective method, time consuming, those selected may refuse
A
Systematic sample
8
Q
Representative, cannot account for all subgroups
A
Stratified sample
9
Q
Convenient, unrepresentative
A
Opportunity sample
10
Q
Easy and participants engaged. Volunteer bias, responsive to cues
A
Volunteer sample
