资讯

lse4 年
Causal Inference for Observational and Experimental Studies
We explore the impact of noncompliance in randomized experiments, as well as nonignorable treatment assignment in observational studies. To analyze these research designs, the methods covered include ...
lse3 年
Causal Inference for Observational and Experimental Studies
as well as nonignorable treatment assignment in observational studies. To analyse these research designs, the methods covered include experiments, matching, instrumental variables, ...
University of Bristol3 年
An introduction to observational and experimental design
On watching this video, students should be able to: Distinguish between an observational and experimental study. Explain the main reason why a randomised experiment can if done well, be used as a test ...
University of Bristol3 年
3 Basic study design principles
This is often done to avoid introducing bias, an example might be to help make the sample representative of the target population. Randomisation is a tool we use in experiments ... of the ...