IBCLC - Certification Research and Evidence-Based Practice Flashcards
6 cards from real IBCLC practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 IBCLC - Certification Research and Evidence-Based Practice flashcards as text
What study design is considered the gold standard for evaluating the effectiveness of a breastfeeding intervention?
Answer: Randomized controlled trial
Randomized controlled trials minimize bias through random assignment and are the gold standard for evaluating clinical interventions.
In evidence-based practice, a systematic review of randomized controlled trials represents which level of evidence?
Answer: Level I
Systematic reviews and meta-analyses of RCTs are classified as Level I evidence, the highest level in the evidence hierarchy.
What does NNT (number needed to treat) represent in clinical research?
Answer: The number of patients who must receive treatment for one to benefit
NNT is the number of patients who need to receive a treatment for one additional patient to benefit compared to a control condition.
Which statistical measure indicates the strength and direction of a relationship between two variables?
Answer: Correlation coefficient
A correlation coefficient (r) ranges from -1 to +1 and indicates both the strength and direction of a linear relationship between two variables.
Which bias occurs when study participants alter their behavior because they know they are being observed?
Answer: Hawthorne effect
The Hawthorne effect occurs when participants change their behavior as a result of being aware that they are under observation.
What is the IBCLC's primary obligation when applying research findings to clinical practice?
Answer: Integrate best evidence with clinical expertise and client values
Evidence-based practice integrates best available research evidence with clinical expertise and the client's individual values and circumstances.
How this page was made: written with AI tools and published by Nathan Beja, founder of Practice Test Geeks, who is responsible for its content. Exam facts are checked against the official sources listed below. Not reviewed by a subject-matter expert. Editorial policy
Sources & references
Exam facts on this page (fees, format, dates, passing scores) are checked against these official sources; the date is our last check. Editorial policy
- ibclc-commission.org — Registration deadline, registration, fees, retake fee, renewal, retake policy, score release, score validity, passing score, exam format · verified Oct 2026
- prometric.com — Test delivery, test dates · verified Oct 2026