Sampling and assignment mechanisms in experiments, surveys and observational studies

Author(s): Sugden, R.

Journal/Book: International Statistical Review. 1988; 56: 165-180.

Abstract: A general framework is given for examining the role of mechanisms for treatment assignment and unit selection in experiments, surveys and observational studies. Conditions are established under which these mechanisms can be ignored for model-based inference. Examples are presented to show how inference can incorporate the mechanisms when the conditions do not hold.

Keyword(s): Causal effects

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