Simple Random
Sampling
Systematic Random
Sampling
Stratified Sampling
Cluster
Sampling
Probability Sampling
Proportionate
Stratified
Sampling
Disproportionate
Stratified
Sampling
Sampling
Non-Probability
Sampling
Snowball
Sampling
Convenient
Sampling
Do you know the population
That you want to sample?
Yes
No
Do you run experiment, setting
up the time?
Yes
No
Do you have lists?
No
Yes
Is the list already random?
Are there subgroups in the list?
Yes
No
Yes
No
Proportionate?
No
Yes
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