Metodologias de Investigação em Saúde Pública - II


At the end the students shall be able to apply:
- The principles, areas, concepts and technical terms used in Public health research.
- The steps, general plan, Protocol and final report, including the research question, conceptual framework, question and objective selection of design and appropriate methods including characterization of variables to study a specific question;
- The definition identification and selection of the population under study, sample using different techniques, and target population;
- The discussion of research results, including the confounding, interaction and effect modification, errors and its resolution, internal and external validity;
- Phases and aspects of the preparation of the field work of research in public health, including alternative resolution of obstacles; 
- Ethical and legal principles of research, informed consent, submission to the Ethics Committee and National Commission for the protection of data;
- Translate tasks in a schedule and quantify costs and sources of financing.
- Presentation of protocol and report including preparation of papers for publication.

General characterization





Responsible teacher

António Barata Tavares


Weekly - Available soon

Total - 50

Teaching language



Enrollment in Specialization in Public Health Course and satisfactory performance in teh following courses:  epidemiology, statistics, information and knowledge in health administration and introduction to public health.


Greg Guest, Emily E. Namey, Editors:  Public Health Research Methods. (Thousand Oaks, California: Sage, 2015.)
 Kathryn H. Jacobsen. Introduction to Public Health Research Methods: a practical guide. (Burlington, MA: Jones & Bartlett Learning, 2012).
 Creswell J.W.:  Research Design: Qualitative, Quantitative and mixed methods approach.  (Thousand Oaks, CA: Sage Publications, 2014
 Bloomberg L.D., Volpe M. Completing your Qualitative Dissertation. (Thousand Oaks, CA: Sage Publications, 2012)
 Bryan, A. Social Research Methods. 4th Edition.  (New York, NY: Oxford University Press, 2008)

Teaching method

– This course is crafted to support each student in the preparation of his or her research proposal
– Sessions will be eminently practical, with the relevant theoretical background as needed.  In each session, students will report on progress done in their respective proposals, on the topic of each class
– The assessment is based on the following parameters: a) Degree and quality of class participation (20%); b) appreciation of individual research protocols presentation (80%).

Evaluation method

Available soon

Subject matter

1. Principles of Public health research. Areas of research, concepts and technical terms used in all phases of the investigation.
2. Steps of a Public health research, General Research Plan, detailed protocol of an investigation and final report of the investigation;
3. The issue of Public health research, conceptual framework and relationship with the research question;
4. The objectives of an investigation, in response to a question of research.
5. Study design and selection of the most appropriate methods to answer a research question;
6. Identification, definition and selection of study population, identification and selection of the sample to study; Sampling techniques; Identification of the target population of a Public health research;
7. Conceptual and operational characteristics and Types of variables; Drawing up the plan of operationalization of variables, the dictionary of variables of a study;
8. The concept of bias and confounding, its effect in the process of investigation; Methods and techniques available for the control or elimination of bias, particularly of confounding bias;
9. The concept of interaction and effect modification, their control and communication;
10. Presentation of the results of an investigation, including the bias and confounding and interaction effects and the role of the random error;
11. Reading, interpretation and discussion of the results of an investigation, in the light of existing knowledge. Discussion and assessment of the internal validity of an investigation according to the methods used, as well as the external validity and generalization ability of results;
12. Practical aspects and phases of the preparation of the field work of a Public health research, including alternatives to the resolution of obstacles identified. The approach of the population under study and the maximization of response rate;
13. Aspects and phases resulting from the ethical and legal principles in health research. Informed consent of participants in research, the Protocol submission an Ethics Committee and the National Commission for data protection;
14. Timeline of tasks necessary for the achievement of the objectives, assessing the feasibility of a research process;
15. Budget of a research process: quantification of the costs of the activities envisaged in the research protocol. Sources of funding for health research projects;
16. Preparation and realization of the presentation of a protocol of a public health investigation, and the report of the results obtained after the research process.
17. Principles and practical aspects of preparation of a manuscript for publication in the journal of biomedical area, including the use of the internet for research in health (bibliographical research; publication of results).


Programs where the course is taught: