Medical Research Methodology: Intro, Types & Ethics

Research is a systematic, scientific, and objective process of gathering, analyzing, and interpreting data to discover new knowledge or solve problems. It encompasses various types, including basic and applied, qualitative and quantitative, observational and experimental, and is guided by stringent ethical principles. A well-structured research proposal outlines the study's plan, from defining the problem to detailing methodology and ethical considerations, ensuring scientific integrity and the protection of participants. Key Points Research is a systematic, scientific, and objective process that aims to expand knowledge or solve problems. Key characteristics of research include being systematic, scientific, objective, empirical, replicable, and problem-oriented. Research can be classified by purpose (basic, applied), nature of data (qualitative, quantitative), approach (descriptive, experimental), time dimension (cross-sectional, longitudinal), and objective (exploratory, explanatory, evaluative, predictive). Ethical principles like Respect for Persons, Beneficence, and Justice are paramount in biomedical research, supported by guidelines such as the Nuremberg Code, Declaration of Helsinki, and Belmont Report. A research proposal is a detailed plan outlining the rationale, objectives, methodology, and ethical considerations of a study. Research methods provide systematic techniques for data collection, analysis, and interpretation, including rational, qualitative, quantitative, and scientific approaches. Common data collection methods include observation, interviews, questionnaires, document review, focus group discussions, and physiological measurements. Scientific integrity demands avoiding fabrication, falsification, and plagiarism, while animal research adheres to the 3Rs principle: Replacement, Reduction, and Refinement. Detailed Notes TOPIC 1: INTRODUCTION TO RESEARCH What is Research? Research is a systematic, scientific and objective process of collecting, analyzing and interpreting data to discover new knowledge, solve problems or test hypotheses. Characteristics of Research (X-tics) 1. Systematic Process – Follows organized steps: Problem identification → Data collection → Data analysis → Conclusion 2. Scientific Approach – Based on observation, experimentation and evidence 3. Objectivity – Must be free from bias and personal opinion 4. Empirical Nature – Based on real-world data and observation, not assumptions 5. Replicability – Data from research can be repeated and verified by others 6. Problem-Oriented – Aims to answer specific questions or solve problems TOPIC 2: TYPES/APPROACHES OF RESEARCH A. Based on Purpose 1. Basic/Fundamental Research Carried out to expand knowledge and understand fundamental principles Has NO direct practical application in mind Aims to expand existing scientific understanding Not aimed at solving an immediate problem Results form the foundation of Applied Research Driven by curiosity and exploration Example: Studying how cells divide 2. Applied Research Conducted to solve specific practical problems Finds immediate application of knowledge for real-world use Key features: Problem-oriented, practical, uses knowledge from Basic Research Focuses on solutions to current problems Results are usually short-term and usable Example: Developing a vaccine for a specific disease B. Based on Nature of Data 3. Qualitative Research Focuses on understanding meanings, experiences, opinions, behaviors and social phenomena Uses descriptive and non-quantifiable data Focuses on "why" and "how" but NOT "how many" Data collected in a natural setting Flexible and exploratory in nature Methods: Interviews, FGDs, Observations, Case studies 4. Quantitative Research Involves collecting and analyzing numerical data Identifies patterns, relationships and cause-effect associations using statistical methods Uses numerical and measurable data Focuses on "how much", "how many", "how often" Uses statistical tools for analysis Results are precise and generalizable Methods: Surveys, questionnaires, clinical trials, observational studies, correlational studies, secondary data analysis C. Based on Approach/Method Research can be: Descriptive – Describes what is (observational) Analytical – Uses existing data to analyze "why" and "how" Experimental – Manipulates variables under controlled conditions Quasi-experimental – Like experimental but lacks full control or randomization Descriptive Research (Observational) Describes events, situations, phenomena as they are Does NOT manipulate variables Answers "What is?" Example: Survey on disease prevalence, study on patient attitudes Analytical Research Uses existing data to analyze and interpret trends Focuses on "why" and "how" Example: Analysis of hospital records Experimental Research Researcher manipulates variables to establish cause-effect relationship Conducted under controlled conditions Quasi-Experimental Research Similar to experimental but lacks ful