a. directly; variability
b. inversely; variability
c. inversely; size
d. directly; size
e. none of the above
The most acute problem with extraneous sources of variation is that
a. they are next to impossible to eliminate or adjust the results for.
b. they do not allow the experimenter to conclude that the observed response was due to
experimental manipulations.
c. we do not know whether or not they have operated.
d. they always work in a negative direction.
e. they can only be eliminated by randomization and matching
Word association tests and story telling are examples of the method of communication.
a. structured’‘undisguised
b. unstructured’‘undisguised
c. unstructured’‘disguised