A Tuberculin Skin Test _____

question 26

Multiple Choice

A tuberculin skin test _____.

• A)is read by the diameter and the elevation of the induration
• B)is negative if a person has received the BCG vaccine
• C)is read by the redness of the induration
• D)two of the above

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Definitions:

Variance

A statistical measure that represents the average squared deviation from the mean, showing how data points are spread out.

Sample Correlation Coefficient

measures the strength and direction of the linear relationship between two variables in a sample.

P-Value

A measure in statistical hypothesis testing representing the probability of obtaining test results at least as extreme as the ones observed, assuming the null hypothesis is true.

Significant Level

The likelihood of incorrectly dismissing the null hypothesis, often represented by the symbol alpha (α).