FIGURE 1.

First three levels of the MEFS App™. Children are instructed to sort cards into boxes based on a specific rule that increases in difficulty when a child progresses through the levels (displayed here: 1: horses versus ducks, 2: large versus small, 3: red versus blue). Source: Pictures from ‘Minnesota Executive Function Scale App™ and Admin Portal User Guide’ (p. 4) by Carlson and Zelazo, ⁶⁶ Reflection Sciences, Inc.™, St. Paul, MN. Reprinted with permission.