CRE CRE Research & Evidence-Based Practice 1

Question 1

In respiratory care education, 'evidence-based practice' is best defined as:

Accepted Answer

Integrating best research evidence with clinical expertise and patient values

Answer

Evidence-based practice is a three-component model integrating the best available research, clinician expertise, and individual patient values and preferences.

Question 2

Which study design provides the highest level of evidence in clinical research?

Accepted Answer

Randomized controlled trial (RCT)

Answer

Randomized controlled trials are the gold standard because random allocation minimizes selection bias and allows causal inference.

Question 3

In diagnostic testing, 'sensitivity' refers to a test's ability to:

Accepted Answer

Correctly identify individuals with the disease (true positives)

Answer

Sensitivity measures the proportion of true positives — how reliably the test identifies patients who actually have the condition.

Question 4

A p-value of 0.03 in a clinical study means there is a:

Accepted Answer

3% probability the results occurred by chance

Answer

A p-value of 0.03 indicates a 3% probability that the observed difference between groups occurred due to random chance alone.

Question 5

When clinical data is heavily skewed, which measure of central tendency is most appropriate to report?

Accepted Answer

Median

Answer

The median is preferred for skewed data because, unlike the mean, it is not distorted by extreme outlier values.

(CRE) Certified Respiratory Educator Practice Test

(CRE) Certified Respiratory Educator Practice Test

CRE CRE Research & Evidence-Based Practice 1