. Author manuscript; available in PMC: 2015 Mar 1.

Published in final edited form as: J Speech Lang Hear Res. 2014 Dec 1;57(6):2033–2050. doi: 10.1044/2014_JSLHR-S-12-0193

Table 3.

Target and attribute (measures) rules defining each subgroup and overall significance after subgroup identification using both the training and testing sets.

Group and target-attribute rules	Value
Subgroup A
Target: Proportion of tasks attempted	>.72
Attribute 1: Proportion of tasks with correct phonemes	>.36
Attribute 2: Proportion of iambic targets imitated with correct stress	>.17
Overall significance	.95
Binomial probability	.0006
Subgroup B
Target: Proportion of iambic targets imitated with correct stress	<.17
Attribute 1: Proportion of tasks attempted	<.72
Attribute 2: Mean upper lip maximum displacement (cm)	>.20
Overall significance	.99
Binomial probability	.036