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Related Experiment Video

Updated: Feb 16, 2026

The Resident-intruder Paradigm: A Standardized Test for Aggression, Violence and Social Stress
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Published intimate partner violence studies often differ from their trial registration records.

Kim Madden1, Kerry Tai1, Zak Ali2

  • 1a Department of Clinical Epidemiology & Biostatistics , McMaster University , Hamilton , Canada.

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|December 28, 2017
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Registering intimate partner violence (IPV) studies in trial registries enhances transparency. However, many published IPV studies show discrepancies with their registry records, particularly in outcomes and funding.

Keywords:
Trial registrationbiasintimate partner violencemethodologyselective outcome reporting

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Area of Science:

  • Public Health
  • Clinical Trials
  • Research Methodology

Background:

  • Trial registration is crucial for methodological transparency and mitigating selective reporting bias.
  • Ensuring accuracy in trial registries is vital for the integrity of research findings.

Purpose of the Study:

  • To assess the concordance between registered study protocols and published findings for intimate partner violence (IPV) research.
  • To identify discrepancies in key study design elements between trial registry records and published IPV studies.

Main Methods:

  • Systematic search of three trial registries and associated published literature for IPV studies.
  • Independent review by two authors to compare key study elements between registry records and publications.

Main Results:

  • 66 IPV studies (2006-2017) were analyzed; 44% were registered post-completion.
  • Discrepancies were common in primary (39%) and secondary outcomes (64%), funding sources (42%), and sample size (39%).
  • Fewer discrepancies were noted in study design elements (20%).

Conclusions:

  • Published IPV studies frequently deviate from their trial registry records.
  • Trial registries are essential for research transparency and preventing reporting biases.
  • Researchers must prioritize accuracy and consistency in trial registry entries.