“…Although instruction with a single task may be more efficient than task interspersal (Rapp & Gunby, 2016), researchers have proposed that task interspersal may facilitate better retention (e.g., Henrickson et al, 2015; Nicholson, 2013) and compliance to instruction (e.g., Laraway et al, 2003). Indeed, providers report using both types of trial presentation (e.g., Bottini et al, 2019; Love et al, 2009).…”