Proportional stratified sampling example

In proportionate stratified sampling, the sample size of each stratum is proportional to its share in the population. For example, if the rural subgroup comprises 40 percent of the population you're studying, your sampling process will ensure it makes up 40% of the sample.

1. What is proportional stratified random sampling?
2. How do you use stratified proportional sampling?
3. What is an example of a stratified sample?
4. What is proportional sampling method?

What is proportional stratified random sampling?

Proportional stratified random sampling involves taking random samples from stratified groups, in proportion to the population. In disproportionate sampling, the strata are not proportional to the occurrence of the population.

How do you use stratified proportional sampling?

Proportionate Stratified Random Sampling:

That means each strata sample has the same sampling fraction. If you have 4 strata with 500, 1000, 1500, 2000 respective sizes and the research organization selects ½ as sampling fraction. A researcher has to then select 250, 500, 750, 1000 members from the respective stratum.

What is an example of a stratified sample?

A stratified sample is one that ensures that subgroups (strata) of a given population are each adequately represented within the whole sample population of a research study. For example, one might divide a sample of adults into subgroups by age, like 18–29, 30–39, 40–49, 50–59, and 60 and above.

What is proportional sampling method?

Proportionate sampling is a sampling strategy (a method for gathering participants for a study) used when the population is composed of several subgroups that are vastly different in number. The number of participants from each subgroup is determined by their number relative to the entire population.