Review set
What covariate adjustment can and cannot do
The questions ask you to screen a specification and say what the adjustment is doing, rather than to restate a rule. Which covariates are admissible comes back readily; the reflex to treat controls as a remedy for a broken design is what needs unlearning.
What this involves
Retrieval after a delay, which is what makes knowledge durable.
Answers here count towards what the system knows about your skills.
What this covers
- Justify a covariate adjustment in an experiment
Given an experiment and a proposed regression, the learner can say what adjustment contributes, judge whether the covariates are admissible, and state what the specification cannot repair.