Chi-square test for independence assesses which of the following?
Chi-square test for independence assesses which of the following?
It assesses whether there is a relationship between the population and the sample.
It assesses whether there is a relationship between two categorical variables.
It assesses whether there is significant difference between scores taken at time 1 and those taken at time 2.
It assesses whether the minimum number of cases exceeds recommended boundaries.
Question 2Which tests could be used if in a contingency table your expected cases were fewer than what is required for the Chi-square test?
Chi-square test for independence.
Two-independent sample t-test.
Fisher’s Exact Probability Test
Paired-samples t-tests.
Question 3 Contingency tables and degrees of freedom are key elements of the chi-square test.
True
False
Question 4 For the chi-square test to be effective, the expected value for each cell in the contingency table has to be at least:
1
5
10
the number of rows times the number of columns.
Question 5 When an odds ratio is calculated from a 2×2 table:
The odds ratio is a measure of the strength of the relationship between the risk factor and disease variables.
The ratio may take any positive or negative value.
An odds ratio of 5 indicates there is no increase in odds of disease among the exposed group.
An odds ratio of 0.50 indicates there is an increase in odds of disease among the exposed group.
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