Describe the basic distinction between probability sampling and nonprobability and explain why most psychology research uses nonprobability methods.
What will be an ideal response?
Any variable that is measured using numbers is best termed a(n) ____ measure.
a. quantitative
b. qualitative
c. objective
d. subjective
Briefly explain the confounds of history and maturation.
What will be an ideal response?
Stratified random sampling and quota sampling are both classified in the category of probability sampling techniques.
a. True
b. False
Indicate whether the statement is true or false
A descriptive nonnumerical observation is best termed a(n) ____ measure.
a. quantitative
b. qualitative
c. objective
d. subjective
What is a confound and how is it related to internal validity?
What will be an ideal response?
When a researcher does not know the exact number of individuals in the population but still wants to control the composition of a sample, the best technique is to use quota sampling.
a. True
b. False
Indicate whether the statement is true or false
The credibility criterion involves establishing that the results of qualitative research are believable from the perspective of recognized experts in the area.
a. True
b. False
Indicate whether the statement is true or false
What are the advantages and disadvantages in the use of a posttest-only control group design versus a pretest/posttest control group design?
What will be an ideal response?
There is a strong possibility that a convenience sample will be biased.
a. True
b. False
Indicate whether the statement is true or false
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