A case study
a. is an intensive study of a single individual or group.
b. is a form of observational research.
c. cannot be used to test a causal hypothesis.
d. all of the these.
A design in which a single group of subjects is given a treatment and then tested is a(n) _____ design.
a. correlational
b. single-group posttest-only
c. single-group pretest/posttest
d. experimental
A researcher moves an experiment out of the laboratory and into the real world. This type of research is called a ____.
a. simulation study
b. field study
c. transported study
d. quasi-experimental study
Stratified random sampling that tries to ensure an equal number of units per group is also called ____ random sampling.
a. modal
b. disproportionate
c. independent
d. proportional
In a contingency table, the number in each cell of the table is
a. the number of categories used to classify the participants.
b. the number of individuals in the sample who are classified in a particular category.
c. the total number of individuals in the sample.
d. the number of individuals who would be expected to belong to a particular category by chance.
In order to determine the effectiveness of his new teaching method, Mr. Lewis gave his students a test to measure their knowledge before he implemented his new method. He also tested them after he implemented his new teaching method. Mr. Lewis is using a
a. single-group posttest-only design.
b. nonequivalent control group posttest-only design.
c. single-group pretest/posttest design.
d. nonequivalent control group pretest/posttest design.
A researcher moves the real world into the laboratory. This type of research is called a ____.
a. simulation study
b. field study
c. transported study
d. quasi-experimental study
After a large local charity is rocked by a spending scandal, Marc wants to know how benefactors feel about the charity and what changes they would like to see made in the future. Marc randomly selects 100 individuals from the list of 1500 by using a random number generator. Marc's sample is best described as a ____ sample.
a. simple random
b. stratified random
c. systematic random
d. cluster random
A researcher measures the number of birds belonging to each of 5 different species sighted in a particular nature preserve over a three month period. What kind of research is this?
a. correlational
b. experimental
c. relational.
d. observational
Two measured variables are to the _____ as one nonmanipulated independent variable and one measured variable are to the _____.
a. quasi-experimental method; correlational method
b. correlational method; quasi-experimental method
c. quasi-experimental method; experimental method
d. experimental method; quasi-experimental method
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