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
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
