Despite the status of crossover phenomena as key data in the theoretical study
of pronominal syntax/semantics, crossover structures have been subjected to relatively little experimental testing. We investigate wh-crossover, quantificational crossover, and analogous structures involving proper name cataphora in behavioral rating studies, deploying a novel experimental
paradigm which contrasts the acceptability of multiple readings of a target sentence. Using this more sensitive experimental task, our results favour an acceptability distinction between weak and strong wh-crossover, and provide a baseline against which to compare more controversial cases of crossover. We further find that proper name cataphora display a remarkably similar crossover effect, including a distinction between “strong” and “weak” cases.