Contents
- Page 2
- Selection Bias
- Selection Bias in Case-Control Studies
- 1. Control Selection Bias
- The "Would" Criterion
- 2. Self-Selection Bias
- 3. Differential Surveillance, Referral, or Diagnosis of Subjects
- Page 3
- Selection Bias in Cohort Studies
- 1. Subject Selection Bias
- 2. Loss to Follow Up Bias
- Preventing Loss to Follow-up
- 3. The "Healthy Worker" Effect
- Page 5
- Differential Misclassification of Exposure
- Recall bias
- Interviewer Bias
- Differences in the Quality of Information
