Presentations Research & Evidence-Based Practice 2

Question 1

A presenter claims 'Studies show our product works.' What is the primary weakness of this evidence statement?

Accepted Answer

It lacks specific citations and sample size details

Answer

Vague references to 'studies' without specifics undermine credibility because the audience cannot evaluate the source quality.

Question 2

Which statistical measure best communicates practical importance of research findings to a non-technical audience?

Accepted Answer

Effect size

Answer

Effect size quantifies the magnitude of a difference or relationship, making practical significance easier to understand than significance testing alone.

Question 3

When presenting a systematic review, why is it important to mention the PRISMA flow diagram?

Accepted Answer

It shows the transparent process by which studies were selected or excluded

Answer

The PRISMA diagram demonstrates methodological transparency by documenting how the literature search was conducted and why studies were included or excluded.

Question 4

A nurse practitioner presents a new wound-care protocol. Which type of evidence ranks highest on the evidence hierarchy for clinical recommendations?

Accepted Answer

Meta-analysis of multiple RCTs

Answer

Meta-analyses of multiple RCTs sit at the top of most evidence hierarchies because they pool results across studies, reducing random error.

Question 5

During a research presentation, your bar chart shows overlapping 95% confidence intervals between two groups. What should you conclude?

Accepted Answer

The difference may not be statistically significant

Answer

Overlapping 95% CIs suggest the difference may not be statistically significant, though a formal test is needed to confirm.

Presentations Practice Test

Presentations Practice Test

Presentations Research & Evidence-Based Practice 2