Chapter 6: Sampling strategies

Question 1

If you want to improve the representativeness, which kind of sampling shoud you use?

Accepted Answer

Quota sampling

Question 2

What are population parameters?

Accepted Answer

Descriptors of the population’s variables of interest

Question 3

Non-probability samples are useful when you want to test if there is a positve/negative effect

Accepted Answer

True

Question 4

What are two conditions on which sampling theory is based?

Accepted Answer

Enough similarity among the elements in a population., Some elements in a sample underestimate a population value.

Question 5

What is the first step in in the sampling design?

Accepted Answer

Define your relevant population

Question 6

Which of these methods reduces the bias of non-probability samples?

Accepted Answer

Both

Question 7

What is a disadvantage of systematic sampling?

Accepted Answer

Periodicity in the population

Question 8

What are the two conditions when choosing for a census study instead of sampling?

Accepted Answer

Small population +The elements are different from each other

Question 9

What is the main reason for cluster sampling?

Accepted Answer

Cheaper than random samples

Question 10

Would you use probability sampling or non-probability sampling for your research proposal?

Accepted Answer

Probability

Question 11

Non-probability samples that are unrestricted are called?

Accepted Answer

Convenience sampling

Question 12

Stratified sampling uses equally big stratums

Accepted Answer

False

Question 13

What influences the sample size?

Accepted Answer

Conditions under which the sample is conducted, The population dispersion, Population size, The desired precision of your estimate

Question 14

In which sampling method each population element is given a known non-zero–chance of selection?

Accepted Answer

Simple random sample

Questions 14