Estimating a treatment effect under biased sampling.
- Resource Type
- Article
- Authors
- Robbins, H; Zhang, C H
- Source
- Proceedings of the National Academy of Sciences of the United States of America; June 1988, Vol. 85 Issue: 11 p3670-3672, 3p
- Subject
- Language
- ISSN
- 00278424; 10916490
Methods are presented for the estimation of a treatment effect based on before- and after-treatment values, where for ethical reasons all and only those patients are treated whose before-treatment values exceed a given constant.