CPN Research Methods & Evidence-Based Practice 3

Question 1

A research abstract reports a p-value of 0.03 for a sleep intervention. This means:

Accepted Answer

There is a 3% probability the results occurred by chance alone

Answer

A p-value of 0.03 means there is only a 3% probability that the observed difference occurred by random chance, indicating statistical significance.

Question 2

When critically appraising a study, 'internal validity' refers to:

Accepted Answer

Whether the study measures what it claims to measure

Answer

Internal validity refers to how well a study is designed to accurately measure the relationship between its variables, free from bias.

Question 3

A nanny finds two studies with contradictory findings on screen time. The BEST next step is to:

Accepted Answer

Look for a systematic review or meta-analysis on the topic

Answer

Systematic reviews and meta-analyses synthesize multiple studies, providing the most comprehensive and reliable answer when individual studies conflict.

Question 4

A study's 'control group' serves the purpose of:

Accepted Answer

Providing a comparison baseline without the experimental intervention

Answer

The control group does not receive the experimental intervention, allowing researchers to isolate the intervention's specific effect.

Question 5

Which statement best describes 'confirmation bias' in evaluating childcare research?

Accepted Answer

Favoring information that confirms pre-existing beliefs

Answer

Confirmation bias is the tendency to seek and favor evidence that supports what one already believes, distorting objective evaluation.

(CPN) Certified Professional Nanny Practice Test

(CPN) Certified Professional Nanny Practice Test

CPN Research Methods & Evidence-Based Practice 3