EHS Day 6 Sampling Methods

Front

What is systematic sampling?

Back

Systematic sampling is a method where you select every nth individual from a list or sequence, such as every 6th person from a phone book.

Front

What is cluster sampling?

Back

Cluster sampling involves dividing the population into groups (clusters) and then randomly selecting entire clusters to gather data from all individuals within those clusters.

Front

What is convenience sampling?

Back

Convenience sampling is a non-probability sampling method where samples are taken from a group that is easily accessible, such as asking a few students in a class.

Front

What is simple random sampling?

Back

Simple random sampling is a method where every individual in the population has an equal chance of being selected, often achieved by random selection methods like drawing names from a jar.

Front

What is the difference between systematic and simple random sampling?

Back

Systematic sampling selects individuals at regular intervals, while simple random sampling gives each individual an equal chance of selection without a fixed interval.

Front

Why is it important to choose an appropriate sampling method?

Back

Choosing an appropriate sampling method is crucial to ensure that the sample accurately represents the population, which affects the validity of the results.

Front

What are the advantages of cluster sampling?

Back

Cluster sampling can be more cost-effective and easier to implement, especially when the population is large and spread out.

Front

What are the disadvantages of convenience sampling?

Back

Convenience sampling can lead to biased results because it does not represent the entire population, as it relies on easily accessible subjects.

Front

In what situations is systematic sampling most useful?

Back

Systematic sampling is useful when a complete list of the population is available and when the population is homogenous.

Front

How can random selection be achieved in simple random sampling?

Back

Random selection can be achieved through methods such as using random number generators or drawing lots.