EDCO 735 Statistics Week 1 Quiz- Questions and
Answers
The degree to which a study supports a causal relationship is: Correct Ans-internal validity
Which of the following is not an example of a quantitative variable? Correct Ans-gender
Of those things that are in the control of the researcher, what is a the most important in
determining causal inference? Correct Ans-the research design
Which of the following is not an example of a categorical variable? Correct Ans-number of
children
Which of the following is not true about standardization of scores? Correct Ans-the
standard deviation always equal two
What are the classic levels of measurement? Correct Ans-nominal, ordinal interval and
ratio
What is the goal of experimental design? Correct Ans-to make it possible to test causal
inference
Nonexperimental research designs: Correct Ans-do not typically involve an intervention
Answers
The degree to which a study supports a causal relationship is: Correct Ans-internal validity
Which of the following is not an example of a quantitative variable? Correct Ans-gender
Of those things that are in the control of the researcher, what is a the most important in
determining causal inference? Correct Ans-the research design
Which of the following is not an example of a categorical variable? Correct Ans-number of
children
Which of the following is not true about standardization of scores? Correct Ans-the
standard deviation always equal two
What are the classic levels of measurement? Correct Ans-nominal, ordinal interval and
ratio
What is the goal of experimental design? Correct Ans-to make it possible to test causal
inference
Nonexperimental research designs: Correct Ans-do not typically involve an intervention