“…In the years since Michael () argued for maintaining the conceptual distinction between discriminative and motivational variables, there has been increasing interest in the MO concept in the applied and conceptual domains of behavior analysis (Fagerstrøm, Foxall, & Arntzen, ; Langthorne, McGill, & O'Reilly, ; Laraway, Snycerski, Olson, Becker, & Poling, ; Lotfizadeh, Edwards, & Poling, ; Maracinni, Houmanfar, & Szarko, ; Rispoli et al, ; Simó‐Pinatella et al, ). This is likely due to the fact that the influence of motivational variables is ubiquitous in real‐world settings, and the MO concept provides a means by which these variables may be described and studied within a behavior analytic framework.…”