Whether rehearsal has a causal role in verbal STM has been controversial in the literature. Recent theories of working memory emphasize a role of attentional resources. but leave unclear how they contribute to verbal STM. Two experiments (with 49 and 102 adult participants. https://www.roneverhart.com/Mike-and-Ike-Italian-Ice-Candy-5-Ounce-Packs-12-Piece-Box/