Ch5 Sampling From Populations

Question 0

What is a subject?

Answer 0

A nonhuman that is subjected to procedures in a research study and to identify the names of research designs

Question 1

What is a participant?

Answer 1

A human who volunteer to be subjected to the procedures in a research study

Question 2

What is the difference between a target population and accessible population?

Answer 2

A target population is all members in the group or population of interest to a researcher, where as an accessible population is a portion of the target population that can be clearly identified and directly sampled from.

Question 3

Why is it important to select a representative sample?

Answer 3

Because researchers went to generalize the results they observe in a sample to those in the target population

Question 4

Name two types of nonprobability sampling methods?

Answer 4

Convenience sampling and quota sampling

Question 5

Name two strategies that researchers use to ensure that characteristics in a convenience sample a representative of characteristics in the target population

Answer 5

Quota sampling in which researchers select subgroups of the population which characteristics that resemble or represent characteristics in the target population
use a combined sampling method in which they combined convenience sampling with probability sampling methods

Question 6

To use simple random sample in a researcher should use sampling with replacement or sampling without replacement?

Answer 6

Sampling with replacement

Question 7

What sampling method involves selecting all individuals from a portion of subgroups in a population?

Answer 7

Cluster sampling

Question 8

How is standard air related to sampling error?

Answer 8

Sampling error which occurs by chance is measured numerically by the standard error of the mean

Question 9

What is one way to reduce sampling error?

Answer 9

Increase the sample size

Question 10

What is the difference between sampling bias and nonresponse bias?

Answer 10

Sampling bias is a bias in which the sampling procedures employed in a study favor certain individuals or groups over others, where as nonresponse bias is a bias in which a number of participants in one or more groups chose not to respond to a survey or request to participate in a study

Question 11

What is it statistical tests specifically applied to identify new populations or subgroups within a larger population?

Answer 11

One sample t-test