An example of the instrumentation threat to internal validity is
a) Questions in the survey are periodically reworded.
b) Standardized tests are used.
c) The experimenter leaves the room during the test.
d) Assessments use both multiple choice and true/false questions.
Correct Answer: c
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Fill in the blank(s) with the appropriate word(s).
__________ furnishes the raw material of sensory experience, whereas __________ provides an interpretation of that material
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