Complementing the P-value from null-hypothesis significance testing with a Bayes factor from null-hypothesis Bayesian testing
Intended for healthcare professionals
Evidence and practice    

Complementing the P-value from null-hypothesis significance testing with a Bayes factor from null-hypothesis Bayesian testing

Helen Evelyn Malone Research assistant professor, School of Nursing and Midwifery, Trinity College Dublin, University of Dublin, Dublin, Ireland
Imelda Coyne Professor in children’s nursing and co-director, Research in Childhood Centre, School of Nursing and Midwifery, Trinity College Dublin, the University of Dublin, Dublin, Ireland

Why you should read this article:
  • To be prepared as Bayesian statistical analysis is likely to become more commonly applied in nursing research

  • To consider how a Bayesian analysis complements null-hypothesis significance testing and adds value to research results

  • To explore simple ways to carry out a Bayesian analysis and interpret a Bayes factor result

Background Classical frequentist statistics, including null-hypothesis significance testing (NHST), dominates nursing and medical research analysis. However, there is increasing recognition that null-hypothesis Bayesian testing (NHBT) merits inclusion in healthcare research analysis.

Aim To recommend that researchers complement the P-value from NHST with a Bayes factor from NHBT in their research analysis.

Discussion Reporting the P-value and a Bayes factor clarifies results that may be difficult to interpret using the P-value alone.

Conclusion NHBT offers statistical and practical advantages that complement NHST.

Nurse Researcher. 28, 4, 41-48. doi: 10.7748/nr.2020.e1756

Correspondence

hmalone@tcd.ie

Peer review

This article has been subject to external double-blind peer review and has been checked for plagiarism using automated software

Conflict of interest

None declared

Permission

To reuse this article or for information about reprints and permissions, please contact permissions@rcni.com

Write for us

For information about writing for RCNi journals, contact writeforus@rcni.com

For author guidelines, go to rcni.com/write-for-nurse-researcher

Want to read more?

RCNi-Plus
Already have access? Log in

or

3-month trial offer for £5.25/month

Subscribe today and save 50% on your first three months
RCNi Plus users have full access to the following benefits:
  • Unlimited access to all 10 RCNi Journals
  • RCNi Learning featuring over 175 modules to easily earn CPD time
  • NMC-compliant RCNi Revalidation Portfolio to stay on track with your progress
  • Personalised newsletters tailored to your interests
  • A customisable dashboard with over 200 topics
Subscribe

Alternatively, you can purchase access to this article for the next seven days. Buy now


Are you a student? Our student subscription has content especially for you.
Find out more