Podcast
Questions and Answers
What does the standard error describe?
What does the standard error describe?
- The average distance between each value in a sample and the sample mean
- A synonym for standard deviation
- A statistic that indicates how precise an estimate the sample mean is (correct)
- A synonym for the 95% confidence interval
When is a statistically significant result indicated by odds ratio (OR) and its 95% confidence interval?
When is a statistically significant result indicated by odds ratio (OR) and its 95% confidence interval?
- Yes, because the confidence interval does not include 0 (correct)
- Yes, because the confidence interval difference is greater than 0
- Yes, because the confidence interval does not include 1
- No, because we don’t know what the null hypothesis was in this scenario
If the median value is reported as the measure of central tendency, what else should be reported?
If the median value is reported as the measure of central tendency, what else should be reported?
- Standard error
- Standard deviation
- Interquartile range (correct)
- p-value
Which of the following statements about the distribution in the histogram are true?
Which of the following statements about the distribution in the histogram are true?
Looking at the histogram, which measures of central tendency and spread would be best to report for this variable?
Looking at the histogram, which measures of central tendency and spread would be best to report for this variable?
In a study where the confidence interval around the mean difference included zero, which test was likely used to study the association and what was done with the null hypothesis?
In a study where the confidence interval around the mean difference included zero, which test was likely used to study the association and what was done with the null hypothesis?
What would you expect a case definition to include when reading an outbreak investigation report?
What would you expect a case definition to include when reading an outbreak investigation report?
In what scenario can a cross-sectional study be used?
In what scenario can a cross-sectional study be used?
What can be expected when a histogram is heavily skewed to the left?
What can be expected when a histogram is heavily skewed to the left?
If an alcohol use screening is performed in a primary care clinic for all patients who report consuming 4 or more alcoholic drinks per week, this would be considered a ______________ screening.
If an alcohol use screening is performed in a primary care clinic for all patients who report consuming 4 or more alcoholic drinks per week, this would be considered a ______________ screening.
