Statistical Tests Between the Means of Related Groups MCQ
Degrees of freedom (df) for the one-sample t-test is equal to _____.
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The number of scores in a sample that are free to vary represents ______.
Answer
Correct Answer:
The degrees of freedom
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What happens to the t-distribution as the sample size increases?
Answer
Correct Answer:
The t-distribution appears more and more like a normal distribution.
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A parametric inferential statistical test of the null hypothesis for a single sample where the population variance is NOT known is the ______.
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If a researcher reports a one-sample t-test with df = 24, how many individuals participated in this study?
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The set of distributions that although symmetrical and bell-shaped, are NOT normally distributed is known as _____.
Answer
Correct Answer:
Student’s t distribution
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If a researcher reported for a single-sample t-test that t(17) = 2.90, p< 0.02, how many subjects were there in the study?
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For a single-sample t test with 18 subjects, the degrees of freedom are _____.
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If the obtained value is greater than the critical value, what should be done?
Answer
Correct Answer:
Reject the null hypothesis
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Which of the following is NOT an assumption of the t-test?
Answer
Correct Answer:
The data should be ordinal or nominal.
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When computing the t value, the sample size must be approximated by calculating the ______.
Answer
Correct Answer:
Degrees of freedom
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If a researcher reported for a one-tailed single-sample t-test that t(14) = 2.25, then _____.
Answer
Correct Answer:
P < 0.025
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