In contrast to other sciences, the verbal theories developed in psychology tend to be more precise than the mathematical theories.
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A two-way ANOVA means that the experimental design includes
a. two independent variables
b. all of the above
c. two dependent variables
d. two types of variance
If a study finds that there is a strong relationship between two variables, this means that ____.
a. the first variable causes a change in the second variable
b. the second variable causes a change in the first variable
c. you can draw the conclusion that each variable causes the other variable to change
d. there is a relationship between the variables but causality has not been established
The group from which you will actually sample in reality is the ____.
a. census
b. population
c. theoretical population
d. accessible population
Hypothetical concepts known as intervening variables link independent variables to dependent variables.
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When graphed, a significant interaction will definitely have
a. lines with markedly different slopes
b. none of the above
c. a crossover interaction
d. parallel lines
How do studies using the experimental research strategy differ from other types of research?
a. Only experiments can demonstrate a cause-and-effect relationship between variables.
b. Only experiments involve comparing two or more groups of scores.
c. Only experiments can describe the relationship between variables.
d. Only experiments can demonstrate a bi-directional relationship between variables.
The group which you would ideally like to sample is the ____.
a. census
b. population
c. theoretical population
d. accessible population
The self-correcting nature of science is revealed when a particular finding fails to replicate.
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A 2 x 3 x 4 factorial design has _____ potential main effects
a. 2
b. 3
c. 24
d. 4
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