Sampling

Question 1

is a method that allows researchers to infer information about a population based on results from a subset of the population, without having to investigate every individual.

Answer 1

Sampling

Question 2

Reducing the number of individuals in a study reduces the cost and workload and may make it easier to obtain high quality information.

Answer 2

Sampling

Question 3

There are several different sampling techniques available, and they can be subdivided into two groups called sampling design: ———.

Answer 3

probability sampling and non-probability sampling

Question 4

In ———, you start with a complete sampling frame-complete list of everyone or everything you want to study, of all eligible individuals from which you select your sample.

Answer 4

probability sampling design

Question 5

In this way, all eligible individuals have a chance of being chosen for the sample, and you will be more able to generalize the results from your study.

Answer 5

Probability sampling design

Question 6

tend to be more time-consuming and expensive than non-probability sampling.

Answer 6

Probability sampling design

Question 7

In ———, you do not start with a complete sampling frame, so some individuals have no chance of being selected.

Answer 7

non-probability (non-random) sampling

Question 8

Consequently, you cannot estimate the effect of sampling error and there is a significant risk of ending up with a non-representative sample which produces non-generalizable results.

Answer 8

Non-probability sampling

Question 9

However, ——— methods tend to be cheaper and more convenient.

Answer 9

Non-probability sampling