Why does ethics matter in research?
A tour through the principles that protect people and give science its legitimacy.
⚖️ The foundation of research ethics
Research ethics emerged from some of the darkest chapters in scientific history — the Nuremberg trials, the Tuskegee study, the case of Henrietta Lacks. These events revealed what happens when science ignores the humanity of its participants. Today, international frameworks exist to ensure that the pursuit of knowledge never overrides the rights and dignity of individuals.
📜 International framework
This course is grounded in the major international instruments:
- Nuremberg Code (1947) — First international code requiring voluntary consent
- Declaration of Helsinki (WMA, updated 2024) — Ethical principles for medical research with human participants
- Belmont Report (1979) — Three foundational principles: respect, beneficence, justice
- CIOMS Guidelines (2016) — International standards for health-related research
- ICMJE Recommendations (2024) — Standards for scholarly publication
- EU AI Act (2024) — First comprehensive AI regulation
Research with human subjects
Protocol, risk levels, and researcher obligations under international standards.
📋 The research protocol
Before collecting any data, every study must have an approved protocol. According to the Declaration of Helsinki (Art. 22), the protocol must include:
- Title, objectives, and hypotheses
- Methodology and description of participants
- Recruitment and withdrawal procedures
- Risk description and mitigation measures
- Data protection plan
- Informed consent form(s)
- Data collection instruments
⚠️ Risk classification (Belmont / CIOMS)
| Category | Description | Examples |
|---|---|---|
| Minimal risk | Risk not greater than that in everyday life or routine examinations. | Anonymous surveys, document analysis, observation of public behavior. |
| Moderate risk | Procedures involving some discomfort or moderate psychological burden. | In-depth interviews, focus groups, sensitive topic questionnaires. |
| Greater than minimal | Significant probability of harm. Requires full ethics committee review. | Studies with vulnerable populations, minors, clinical interventions. |
🛡️ Vulnerable populations
- Minors: Require parental/guardian consent AND child assent.
- Dependent relationships: Teacher-student, supervisor-employee — consent must be obtained by an independent third party.
- People with disabilities: Specialized certification and legal representative.
- Marginalized communities: Prior community engagement and institutional approval.
✅ Researcher obligations
- Submit the protocol before starting the study.
- Report any adverse events to the ethics committee within 15 working days.
- Suspend immediately if harm to participants is detected (Helsinki, Art. 18).
- Submit a final report upon completion of the study.
- Retain signed consent forms in a secure location.
Informed consent
The agreement that guarantees autonomy and protects everyone involved.
📄 What is informed consent?
Informed consent is the free, voluntary, and documented agreement by which a participant authorizes their participation, with full knowledge of the objectives, procedures, benefits, and risks of the study.
The Declaration of Helsinki (Art. 25) states: "No person capable of giving informed consent may be included in a study unless they freely agree."
📋 Mandatory elements of informed consent
💡 Check each element as you draft your consent form.
⚠️ Special situations
- Minors: Parental/guardian consent + child assent when maturity allows (Helsinki, Art. 29).
- Dependent relationships: Consent must be obtained by an independent third party.
- Minimal risk research: The ethics committee may authorize verbal consent with witnesses.
Publication & scientific integrity
Ethics doesn't end when data is collected — it continues through dissemination.
✍️ Responsible authorship (ICMJE 2024)
To be listed as an author, a person must:
- Have made substantial contributions to conception, design, data collection, or analysis.
- Drafted or critically revised the manuscript.
- Approved the final version.
- Agreed to be accountable for all aspects of the work.
Prohibited: honorary authorship (listing people who don't qualify) and ghost authorship (omitting people who do).
🌐 Open science & FAIR data
- Publish negative results — not just positive ones (Helsinki, Art. 36).
- FAIR principles: Findable, Accessible, Interoperable, Reusable.
- Pre-registration: Register the study protocol before data collection.
- Open access: Share findings where anyone can read them.
Artificial Intelligence in research
Opportunities, risks, and ethical obligations in the use of AI.
Why does AI require special ethical considerations?
AI systems in research can amplify biases, generate false results with the appearance of rigor, and raise new questions about authorship, privacy, and transparency that traditional frameworks did not anticipate.
🧾 AI in academic writing (ICMJE 2024)
- AI cannot be listed as an author — it cannot assume responsibility.
- Use of generative AI (ChatGPT, Copilot, etc.) in writing must be explicitly declared in the methods section.
- The researcher is responsible for all content accuracy, even if AI-assisted.
- Using AI to generate fake data, references, or results constitutes fabrication.
⚠️ Key risks in research
- Participant data: Entering identifiable participant data into AI platforms without consent violates privacy.
- Algorithmic bias: AI tools may reproduce gender, racial, or contextual biases.
- Hallucinations: Language models may generate false references with high apparent confidence.
- Methodological opacity: Undeclared AI use prevents reproducibility.
✅ Responsible AI practices
- Inform participants if AI will be used to analyze their responses.
- Verify every AI-generated reference before citing it.
- Do not enter identifiable participant data into AI tools without prior anonymization.
- Declare what AI tools were used, how, and for what purpose.
- Critically evaluate AI outputs: AI is a tool, not an arbiter of truth.
Final Assessment
Answer at least 7 out of 10 questions correctly to obtain your certificate.
research with human subjects, informed consent, publication integrity,
and responsible use of AI in research.
Templates & documents
Download the official REC formats for your research.
📋 Research documents ✅ Direct download
Research Protocol Template
Official REC format · 10 sections · Includes ethics certification field
Informed Consent Template
All mandatory elements per Declaration of Helsinki (2024) · With witness table
Minor Assent Template (12–17 years)
Child-friendly language · Helsinki Art. 29 · Complements parental consent
🔗 Key international references
- Declaration of Helsinki (WMA, 2024)
- Belmont Report (1979)
- CIOMS Guidelines (2016)
- ICMJE Recommendations (2024)
- COPE Core Practices (2024)
- EU AI Act (2024)
- FAIR Data Principles (Wilkinson et al., 2016)
📚 Further reading
Selected readings organized by topic.
Dr. María del Pilar García-Chitiva
Research Ethics Course (REC) · 2026