How is Data Collected and Analyzed in Epidemiological Studies?
Data collection and analysis are crucial components of research design.
1. Data Collection Methods: These can include surveys, interviews, medical records, and laboratory tests. The method chosen depends on the research question and the study design.
2. Bias and Confounding: Researchers must be vigilant about potential biases and confounding factors that can distort findings. Techniques such as randomization, matching, and statistical adjustments are employed to mitigate these issues.
3. Statistical Analysis: The choice of statistical methods depends on the research question and the type of data. Common methods include regression analysis, survival analysis, and stratified analysis.
