methods / Causal Validation / Naturalistic Causal Probing (input-level dependency-tree reinflection)
Naturalistic Causal Probing (input-level dependency-tree reinflection)
Intervenes on a morphosyntactic property at the INPUT (sentence) level rather than in representation space: swaps a focus noun's lemma to change its gender/number, recursively re-inflects every grammatically-dependent word via the sentence's dependency tree, and estimates the average treatment effect on a model's internal representations using a paired (matched-counterfactual) estimator justified by the backdoor criterion — guaranteeing purity of the intervention at the cost of losing any explicit representation-space subspace or direction.