Medical Research Methodology: Intro, Types & Ethics

Summary Research is a systematic, scientific, and objective process of gathering, analyzing, and interpreting data to discover new knowledge or solve problems.

Summary 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 full control or randomization - Used when true experiments are not feasible D. Based on Time Dimension Cross-Sectional Research - Conducted at a single point in time or over a short period - Captures a snapshot of a population/phenomenon - No follow-up over time - Example: Survey Longitudinal Research - Involves repeated observation of the same subjects over an extended period - May include cohort studies (following a group with common characteristics) - Panel study – repeated data from same individuals - Trend study – changes in population over time E. Based on Objective/Purpose 1. Exploratory Research – Conducted to explore a problem or phenomenon when very little info is available; Example: Pilot study on new disease 2. Explanatory Research – Seeks to explain relationships between variables and identify cause-effect; Also called analytical research; Example: Relationship between smoking and lung disease 3. Evaluative Research – Assesses effectiveness or impact of a program/intervention with aim of improving programs and decision-making; Example: Evaluation of vaccination programs 4. Predictive Research – Aims to forecast future outcomes based on existing data and trends; Example: Predicting disease outbreak patterns F. Based on Setting Laboratory Research - Conducted in controlled environment where factors can be strictly controlled - Example: Drug testing in cell culture, microbiological studies in lab Field Research - Conducted in natural or real-life setting outside the lab with minimal control over variables - Example: Community health surveys, observing patient behavior in hospitals TOPIC 3: USES & APPLICATIONS OF RESEARCH Uses of Research 1. To generate new knowledge 2. Improve existing methods and practices 3. Solve scientific, medical and social problems 4. Develop new technology and products 5. Support decision making and policy formulation 6. Improve healthcare, industry, education and other sectors Applications of Research - Science & Technology : Contributes to development of medicine, vaccines, biotechnology and engineering - Innovation : Contributes to development of new products and processes - Environmental Protection : Contributes to sustainability - Medicine & Health Sciences : Improved approaches in disease diagnosis and treatment, drug discovery, clinical trials, public health improvement TOPIC 4: RESEARCH METHODS Research methods are systematic techniques and procedures used to collect, analyze and interpret data in order to answer research questions or test hypotheses. They guide how research is conducted. 1. Rational Research Methods Approaches that rely on logical reasoning, critical thinking and systematic analysis rather than just observation or experimentation. Aim to reach valid conclusions using the power of the mind and reasoning. Types: - Deductive method – Moves from general theory to specific observation; tests

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