Which of the following is an advantage of the factorial design? It
a. provides an opportunity to observe interaction.
b. accomplishes what might take many separate experiments.
c. provides a more powerful test of the hypothesis.
d. All of these are true.
Ques. 2To investigate the interaction effect of several independent variables, a researcher would use a(n) _____ experimental design.
a. ABAB
b. factorial
c. Solomon four-group
d. single-subject
e. static group comparison
Ques. 3Every subject receives every treatment in the
a. counterbalanced design.
b. randomized Solomon four-group design.
c. randomized subjects pretest-posttest, control group design.
d. randomized subjects posttest-only, control group design.
e. nonrandomized control group pretest-posttest design.
Ques. 4Researchers found no significant relationship between color combinations in a classroom and the time on task of the students. The researchers can conclude that
a. there is no relation between the color of a classroom and students' performance.
b. they did not find the appropriate color combination for the study.
c. their measurement of time on task may have some reliability problems.
d. Any of these are true.
e. None of these is true.
Ques. 5Product researchers studied the relationship between their cola and a composite happiness scale. The null hypothesis was retained. They should state that
a. drinking their cola does not cause depression.
b. their cola has no relationship to the happiness of its drinkers.
c. there is not enough evidence to suggest a relationship between drinking their cola and happiness.
d. their design was not powerful enough to find a significant relationship
Ques. 6A researcher finds no relationship between building paper-mache volcanoes and knowledge about volcanoes. The researcher should state that
a. there is no relationship between building paper-mache volcanoes and knowledge about volcanoes.
b. the evidence is not sufficient to say there is a relationship between building paper mache volcanoes and knowledge about volcanoes.
c. there is probably a relationship between building paper-mache volcanoes and knowledge about volcanoes, but it can't be demonstrated at this time.
d. Any of these are true.
Ques. 7A researcher finds no relationship between building paper-mache volcanoes and knowledge about volcanoes. The researcher should state that
a. there is no relationship between building paper-mache volcanoes and knowledge about volcanoes.
b. the evidence is not sufficient to say there is a relationship between building paper mache volcanoes and knowledge about volcanoes.
c. there is probably a relationship between building paper-mache volcanoes and knowledge about volcanoes, but it can't be demonstrated at this time.
d. Any of these are true.
Ques. 8A group of researchers retained their null hypothesis. They might be able to conclude that there is no relationship among the variables of study if
a. they studied a complete population.
b. they sampled an extremely large number of subjects.
c. Both of these.
d. None of these is true.
Ques. 9In interpreting expected results, researchers should
a. not make interpretations that go beyond the information.
b. address the limitations of the study.
c. report any internal validity problems that could account for the results.
d. All of these are true.
e. None of these is true.
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