What are the different types of selection methods?

What are the different types of selection methods?

There are several selection methods, including random selection, systematic selection, stratified selection, and convenience selection. Each has its own advantages and use cases.

Can you explain random selection?

Random selection involves choosing individuals from a population in such a way that each individual has an equal chance of being selected. This method helps eliminate bias.

What about stratified selection?

Stratified selection divides the population into subgroups or strata and then randomly selects from each stratum. This ensures representation from all segments.

Which method is best for surveys?

It depends on the survey's goals. Random selection is great for generalizability, while stratified selection is better for ensuring all demographics are represented.

Are there any drawbacks to these methods?

Yes, random selection can lead to unrepresentative samples if the population is small, while stratified selection requires detailed population data.