Chapter 5 Self-Grading Quizzes

. ______ is not a relevant factor to consider when identifying a population for a study.

Unit of analysis

The researcher's background

Geographic location

Time period

. One of the major goals of your research is that it should be portable, which means _________.

the same project can be conducted in another context

the analysis is conducted using public data

the results can be applied in another context

other researchers can understand your methodology

. Because it is usually not feasible to include every case in the ___________, most researchers focus on studying a _______________.

population; parameter

sample; population

census; unit of analysis

population; sample

. In order to maximize how much you can generalize from your findings, you should strive to make your sample _____________.

stratified

representative

self-selected

small

. Large sample sizes are good for increasing ________________.

the closeness of the sample statistic to the population parameter

accuracy when your population is very heterogenous

statistical power when including a lot of variables

All of the above

. The formula P(A)=r/n is used to calculate _________________.

the probability of an outcome

the statistical effect size

the margin of error

the sample size

. The most basic form of probability sampling is called:

Cluster sampling

Stratified sampling

Purposive sampling

Simple random sampling

. ______ involves breaking the population into mutually exclusive subgroups and then randomly sampling from each group.

Stratified random sampling

Purposive sampling

Cluster sampling

Snowball sampling

. Which of these is a non-probability sampling method?

Snowball sampling

Simple random sampling

Cluster sampling

Stratified random sampling

. Which of these is true about a convenience sample?

They are a random sample in the statistical sense.

They are not affected by self-selection bias.

They are sometimes used when they are the only or easiest way to gather data.

You can easily describe their representativeness.

. Using a representative sample makes it more likely that your sample statistic will be representative of the population parameter.

True

False

. Random sampling means that each potential case has an equal likelihood of being chosen.

True

False

. The following formula is used to calculate the probability of a single event: P(A) = r/n, where P(A) is the probability of event A, r is the number of favourable outcomes, and n is the number of total outcomes.

True

False

. There is no law of diminishing returns with regards to sample size and margin of error.

True

False

. Stratified random sampling involves randomly choosing clusters of cases and using those as the focus of your study.

True

False

. Quantitative researchers are more likely to use non-probability sampling techniques.

True

False

. Self-selection for participation in a research study can bias the sample results.

True

False

Quiz Content