Table 1.

Participant characteristics

Participants	Age	Gender	VB-MAPP score	Tact repertoire	Mand repertoire
Shreeya	5 years, 2 months	Female	130.5	• Tacts at least 50 items • Tacts at least 10 actions • Tacts at least 50 noun-verb or verb-noun relations • Tacts color, shape, and function of at least five different objects • Tacts four prepositions/pronouns	• Mands for at least 20 different missing items without prompts • Mands for others to emit at least five different actions • Emits at least five different mands containing two words or more • Spontaneously emits at least 15 different mands • Emits at least 10 different mands without training • Spontaneously mands using a WH question at least two times • Mands to stop an undesirable activity under at least two different circumstances
Jake	5 years, 7 months	Male	95.5	• Tacts at least 50 items • Tacts at least 10 actions • Tacts at least 50 noun-verb or verb-noun relations	• Mands for at least 20 different missing items without prompts • Mands for others to emit at least five different actions • Emits at least five different mands containing two words or more • Spontaneously emits at least 15 different mands