Table 2.

Individualized intervention targets and treatment words.

ID	Target	Morphological complexity	Treatment words
Mia	[−ks]	Monomorphemic	mix, max, fix, nix, wax, unbox
Megan	[−ɹd]		guard, board, reward, hoard, discard, record
Mabel	[−ɹd]		guard, board, reward, hoard, discard, record
Monroe	[−ɹs]		pierce, course, endorse, source, morse, parse
Benjamin	[−ɹz]	Bimorphemic	soars, hears, dares, tours, cares, repairs
Burton	[−ɹd]		soared, dared, toured, cared, repaired, veered
Blossom	[−ks]		packs, unpacks, picks, kicks, knocks, unlocks
Briana	[−ɹd]		soared, dared, toured, cared, repaired, veered

Note. All intervention targets were phonologically complex (i.e., were clusters). Clusters that did not feature a tense and agreement morpheme were morphologically simple (i.e., monomorphemic), and those that featured third-person singular or regular past tense were morphologically complex (i.e., bimorphemic).