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VALIDATING PREDICTION MODELS - what is discrimination and calibration?
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- เผยแพร่เมื่อ 22 ก.ย. 2021
- Learn all about the concept of internal and external validation of prediction models in this short epidemiology tutorial. Learn all about discrimination and calibration, calculating the Area under the Curve (also called C-statistic) and the risks of overfitting your prediction model.
About me:
I am a registered clinical epidemiologist and working as a fellow in medical oncology in the Netherlands. I have published over 50 manuscripts and have received several large research grants. I am particularly interested in research in geriatric oncology and am a an active member of the International Society for Geriatric Oncology.
You can find more information about my work on my linkedin page:
www.linkedin.com/in/nienke-de-glas
And here is my full bibliography:
pubmed.ncbi.nl...
Disclaimer:
Views and opinions are my own. Examples from clinical research will always include either my own work, or previously published research. I will include references in the description box.
Thanks a lot.
Regards from a brazilian medical student.
Hi, this video is so helpful to know about internal validation
Great explanation. Thank you.
This really helped, thank you 💕
awesome video, thanks so much!!
Hello ma’am! My god I’ve been looking for a video such as this for months! I haven’t been able to find a simplified video or explanation regarding validations!
I’m a surgical resident from Pakistan and I want to conduct an external validation study of a prognostic score done in France about 6 years ago. We’re not taught research very well at my medical school so my research background is quite weak. Would really appreciate some mentoring or guidance from an expert. I didn’t know where else to message so here goes a TH-cam comment.
Thank you so much for the video! I’ll be sure to watch the rest too! Really excited about the SPSS ones too. Hope I get to hear back from you. Regards. Dr. Ammar
thanks a lot for your feedback! I hope my videos can help you further in your research.
Hi, this is so informative. Can you please tell me how to calculate expected values of risk prediction models?
Thank you dr De Glas. I just wonder which statistical software did you use to plot these nice calibration graphs?
I make the graphs in Graphpad and use the calculated line by R, it was a bit too much to cover that in this video...
Please, is validation of a prediction model named predictive validity?
Hi. Thanks for the clear explanation. When can we expect to see the tutorial on how to perform cross validation in SPSS? I was also wondering whether it's possible to do 10-fold cross-validation in SPSS? Keep up the good work!
Thanks for your question! I will cover that topic in an upcoming video somewhere next month.
@@nienkedeglas_mdphd please i need the SPSS tutorial