This is a high quality RCT on one Applied RFT program that deserves attention.
Relational abilities and scholastic aptitude in children; SMART vs N-Back; N = 107.
Cummins, J., Meijer, Z., Cassidy, S., & De Houwer, J. (2026). A failure to find effects of relational operant training on relational abilities or scholastic aptitude of school children: A randomised controlled trial. Journal of Contextual Behavioral Science, 42, 101032.