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EDCO 735 Statistics Week 1 Exam | Questions Answered 100% Correct| Rated A

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EDCO 735 Statistics Week 1 Exam |
Questions Answered 100% Correct|
Rated A

Which of the following is not an example of a categorical variable? - ANSWER number of
children



Which of the following is not true about standardization of scores? - ANSWER the standard
deviation always equal two


What are the classic levels of measurement? - ANSWER nominal, ordinal interval and ratio


What is the goal of experimental design? - ANSWER to make it possible to test causal inference


Nonexperimental research designs: - ANSWER do not typically involve an intervention



Without random assignment, what assumption may be violated? - ANSWER equivalence
of groups across treatment conditions


Which of the following is not considered to be quantitative? - ANSWER nominal



What percentage of scores are within three standard deviations from the mean? - ANSWER
99.72



A claim of causality: - ANSWER is strengthened when results are replicated across multiple
studies
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