“…Dube & McIlvane, 2002; Lambert, Bloom, Samaha, Dayton, & Kunnavatana, 2016). However, human-operant BMT research will often keep magnitude of reinforcement (per delivery) constant and will instead use fixed- or variable-time schedules to increase rates of reinforcement in rich components (e.g., Ahearn, Clark, Gardenier, Chung, & Dube, 2003; Lambert et al, 2016; Lieving et al, 2018; Lionello-Denolf & Dube, 2011; Romani et al, 2016; Saini & Fisher, 2016; Saini, Fisher, & Pisman, 2017). Although magnitude manipulations are known to produce differential response persistence (e.g., Harper & McLean, 1992; Nevin, 1974; Shettleworth & Nevin, 1965; Shull & Grimes, 2006), it is possible that preparations involving time-based schedules of reinforcement would have produced more pronounced effects in Phase 2 and would have increased the likelihood of the transfer of persistence during Phase 3.…”