Correlational research is a research method in which:
a. a representative sample of individuals is asked for their opinions
b. the research effort focuses on a single case
c. selected individuals are carefully observed in their natural environments
d. a researcher tries to determine the extent to which two variables influence each other
D
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A researcher uses a repeated-measures ANOVA to test for mean differences among three treatment conditions using a sample of n = 10 participants. What are the df values for the F-ratio from this analysis?
a. 3, 9 c. 3, 18 b. 2, 9 d. 2, 18
One of the advantages of the correlational method is that
a. greater control is possible over the phenomenon in question. b. cause-and-effect relationships can be confirmed. c. it allows prediction. d. it can only be used in the laboratory.
A child without complete myelination will not be able to engage in activities requiring visual-motor coordination for which of the following reasons?
a. The afferent neurons are damaged, causing the axon to swell. b. The axon does not have sufficient myelin coating. c. The dendrite is not insulated with myelin. d. The leakage of electrical current being carried along the axon is minimized.
Overextension errors occur when a child applies a label to
a. objects that look different. b. objects that have different functions. c. a broader category than the word signifies. d. a narrower class of objects than the term signifies.