“…There is compelling support for the ETBD in the basic literature (e.g., McDowell, 2004McDowell, , 2019McDowell, , 2021McDowell & Klapes, 2020;McDowell & Popa, 2010), and readers are referred to McDowell (2023) for additional summaries of the ETBD. Research shows emergent outcomes produced by the ETBD mirror steady-state choice of live organisms in matching arrangements (see McDowell, 2021 for an extensive summary). That is, AOs animated by the ETBD respond comparably to live animals on (a) single-alternative arrangements using random-interval (RI) schedules (e.g., McDowell & Arashanapalli, 2021;McDowell & Klapes, 2020;Morris & McDowell, 2021), (b) concurrent RI RI schedules (e.g., McDowell & Calvin, 2015;McDowell & Klapes, 2019), and (c) concurrent random-ratio (RR) schedules (McDowell & Klapes, 2018).…”