Related Experiment Video
Updated: May 16, 2026
09:36
Assessment of Child Anthropometry in a Large Epidemiologic Study
Published on: February 2, 2017
Obesity paradox or inappropriate study designs? Time for life-course epidemiology
Journal of Hypertension
|November 16, 2012
Abstract
No abstract available in PubMed .
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01:29Bias in Epidemiological Studies
Biases can arise at various stages of research, from study design and data collection to analysis and interpretation. Recognizing and addressing these biases is essential to ensure the validity and reliability of epidemiological findings.Broadly speaking, biases in epidemiology fall into three main categories: selection bias, information bias, and confounding. A more detailed description of possible biases is:
01:20Study Designs in Epidemiology
Epidemiological study designs are fundamental tools for investigating the distribution, determinants, and control of health conditions in populations. They help researchers understand the relationships between exposures and outcomes, and they broadly fall into two categories: "observational" and "experimental" studies.
Observational studies are those where the researcher does not intervene but rather observes natural variations. They include cross-sectional, cohort, and case-control studies.
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02:20Longitudinal Research
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01:27Confounding in Epidemiological Studies
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