Chi-Square and Nonparametric Tests in Statistics MCQ
Chi-Square and Nonparametric Tests in Statistics MCQ
1. A chi-square test of two dimensions or more that examines whether the distribution of frequencies on a variable is _____ of other variables.
Answer
Correct Answer:
Independent
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2. In which test the goodness of fit test is on one dimension, which examines whether the distribution of frequencies is different from what one would expect by chance.
Answer
Correct Answer:
Chi square test
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3. Distribution-free statistics that do not require the same assumptions as do parametric statistics is called
Answer
Correct Answer:
Nonparametric
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4. Statistics used for the inference from a sample to a population that assume the variances of each group are similar is called
Answer
Correct Answer:
Parametric
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5. What is the consequence of violating one of the necessary assumptions of parametric inferential statistics?
Answer
Correct Answer:
The actual probability of making a Type I error is larger than α.
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6. In a chi-square procedure, we test whether “the frequencies in each category in the sample data ______
Answer
Correct Answer:
Represent specific frequencies in the population.”
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7. Nonparametric procedures are usually NOT our first choice among statistical procedures because ______.
Answer
Correct Answer:
They are less powerful than parametric procedures
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8. Which of the following is NOT an assumption of the χ2 test?
Answer
Correct Answer:
It is appropriate only for ordinal data.
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9. Which of the following statements about nonparametric procedures is FALSE?
Answer
Correct Answer:
Nonparametric procedures do not assume that samples come from population distributions.
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10. Nonparametric is to parametric as ______ is to ______.
Answer
Correct Answer:
Chi-square-test; t-test
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11. The sum of the observed frequencies from all categories must equal ______.
Answer
Correct Answer:
N
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12. When are nonparametric procedures used instead of parametric procedures?
Answer
Correct Answer:
When our data do not meet the assumptions of parametric procedures
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13. Parametric is to nonparametric as ______ is to ______.
Answer
Correct Answer:
Independent-groups t test; chi-square test for independence
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14. If I calculated my phi coefficient to be 0.35, what would this mean?
Answer
Correct Answer:
That there is a medium effect size
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15. Which of the following is TRUE regarding the chi-square test of independence?
Answer
Correct Answer:
It requires a numerical (quantitative) score for each individual.
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