MPT Research Methods and Evidence-Based Practice 2

Question 1

A clinical test has a sensitivity of 90%. This means:

Accepted Answer

90% of people who have the disease will test positive

Answer

Sensitivity is the true positive rate — the proportion of people with the condition who correctly test positive; high sensitivity means few false negatives.

Question 2

The Number Needed to Treat (NNT) is best calculated as:

Accepted Answer

The reciprocal of the absolute risk reduction

Answer

NNT = 1/Absolute Risk Reduction and represents how many patients must be treated for one additional patient to benefit compared to the control condition.

Question 3

The minimal clinically important difference (MCID) is best defined as:

Accepted Answer

The smallest change in an outcome measure that patients perceive as meaningful

Answer

MCID represents the threshold of change that patients consider beneficial, bridging the gap between statistical significance and clinical relevance.

Question 4

A 95% confidence interval for a mean difference that does not include zero indicates:

Accepted Answer

Statistical significance at the p<0.05 level

Answer

A 95% CI not crossing zero corresponds to p<0.05, indicating the true difference is unlikely to be zero and the result is statistically significant.

Question 5

The Intraclass Correlation Coefficient (ICC) is most appropriately used to assess:

Accepted Answer

The reliability of continuous measurement data

Answer

ICC quantifies reliability (test-retest or inter-rater) for continuous data, with values approaching 1.0 indicating excellent reliability.

MPT - Master of Physical Therapy Practice Test

MPT - Master of Physical Therapy Practice Test

MPT Research Methods and Evidence-Based Practice 2