Introduction to Research and Research Literature

Introduction to Research

• Defined as a systematic process for collecting, analyzing, and interpreting information using scientific methods.

Hypothesis Testing

• Involves identifying cause-effect relationships and designing studies to test hypotheses. Research generates new questions in a cyclic manner.

Types of Variables

• Independent Variable: Cause, exposure, or determinant.

• Dependent Variable: Effect or outcome influenced by the independent variable.

• Confounding Variables: Associated with both health problems and potential causes.

Diversity of Nutrition Research

• Types include behavior change studies, education program evaluation, nutrigenetics, epigenetics, metabolomics, clinical nutrition, and community health studies.

Research Questions

• Inform various aspects of nutrition, including biochemistry, physiology, socioeconomics, food marketing, and health care.

Types of Nutrition Studies

• Clinical interventions, epidemiological research, and community assessments provide insights into health and diet.

Epidemiology

• Studies determinants and distribution of health-related states. Classifications: descriptive, analytic, and experimental studies.

Basic Epidemiological Concepts

• Rates, incidence, relative risk are essential for determining health outcomes.

Research Design Considerations

• Choose appropriate study designs to enhance validity. Factors include sampling, error types, and clinical relevance.

Types of Research Articles

• Includes original research, reviews, systematic reviews, and narrative reviews.

Information Literacy

• Ability to locate, evaluate, and use information effectively.

Structure of a Research Article

• Key components: Title, abstract, introduction, methods, results, discussion, conclusions, references, author information.