The "C" in PICO represents the comparison intervention or control group
When using PICO in diagnostic studies, the comparator or control is the "gold standard" method by which a disease state is detected in the current clinical environment.
Comparison or control groups are also necessary when trying to understand the magnitude, variance, and direction of a treatment effect.
Baseline or preliminary measures of an outcome can also be considered the "C" in PICO when used in within-subjects designs.
How to choose control participants
2. Choose controls that have similar demographic, prognostic, and clinical characteristics to the treatment group.
3. Explicitly define the comparison group, intervention, exposure, test, or agent and how it is applied in the methodology.
4. It is feasible to collect 2:1, 3:1, and 4:1 ratios of controls to cases to improve upon precision and accuracy of research findings.
5. Clearly define the methodology undertaken to select controls and the type of intervention (if any) that they received in comparison to the experimental group.
Statistician Services for Students
Eric Heidel, Ph.D. will provide the following services for undergraduate and graduate students at $50/hour. Secure checkout is available with Stripe or PayPal.
- Statistical Analysis
- Research Design
- Sample Size Calculations
- Diagnostic Testing and Epidemiological Calculations
- Survey Design and Psychometrics
AppNotch: Convert this website into an Android and iOS app.
AppNotch team will notify you when your app gets approved in Google Play and Apple iTunes App Stores. Once your app goes live, enter your App Store URLs in this property window, publish your Weebly site and your app store icons will be visible in this page.
Please visit AppNotch.com FAQ to learn more about how to add App Store icons to your website, update your app, send Push notifications and more.
Professional Statistician For Hire!
Copyright © 2018 Scalë. All Rights Reserved. Patent Pending.