Knowledge Check

Counterfactual signal evidence

While reviewing recsys feedback bias, offline logs compare policies unfairly. Which action fixes it, and which check proves it worked?

What this task practices

Counterfactual signal evidence is a knowledge check interview exercise that trains prompt interpretation, explicit assumptions, a concrete response, and a clear explanation of tradeoffs. The catalog marks it as hard difficulty. It focuses on Recsys Feedback Bias, Counterfactual Signal. The signed-in workspace provides the tools for the round and evaluates the attempt against task-specific criteria. Reference solutions, hidden checks, evaluator instructions, and candidate work remain private.