Fig. 1.

A representation of executive functions (EFs) as described in-text; including core EFs of relational knowledge and cognitive flexibility. The figure depicts that these core EFs are necessary for higher order EFs, which in turn are important for everyday cognition and functional independence. The figure also suggests that relational complexity and relational flexibility, as described by RFT, are interrelated with relational knowledge and cognitive flexibility. Note that this figure does not depict all executive functions, only those relevant to this paper