Sampling

Question 1

Simple

Answer 1

Randomly select participants with no bias, ie using a random number generator

Question 2

Systematic

Answer 2

Uses a numbered system in choosing participants, ie every sixth person to walk in a shop.

Question 3

Stratified

Answer 3

Populations are split into several mutually exclusive groups and then random sampling occurs among these groups, ie ppts split into age ranges then are randomly selected.

Question 4

Quota

Answer 4

Populations are split into several mutually exclusive groups and then selected by convenience, ie ppts split into age ranges then those the most convenient are selected.

Question 5

Convenience

Answer 5

Ppts are selected based on how easy they are to obtain, ie using ppts in your own school