Probability sampling involves the need for the computation of a sample via certain equations.
Non-probability sampling is preferred in qualitative research.
Randomization is involved in probability sampling.
Non-probability sampling is more appropriate for interviews.
K = N / n
N = N / k
N = (Ni / N) (n)
K = (N)(N) / 2n
Systematic random sampling
Stratified random sampling with equal allocation
Stratified random sampling with proportional allocation
Simple random sampling
Stratified random sampling
Adolescent 65, Young Adult 93, Late Adult 66
Adolescent 71, Young Adult 88, Late Adult 66
Adolescent 71, Young Adult 80, Late Adult 74
Adolescent 62, Young Adult 93, Late Adult 78
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