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. 2017 Jan;48(1):16–30. doi: 10.1044/2016_LSHSS-16-0014

Table 7.

Classification measures for significant pretreatment measures.

Variable Accuracy (%) Sensitivity (%) Specificity (%) Positive likelihood ratio Negative likelihood ratio
CTOPP Phonological Awareness (cut-off = SS 77, PR 6) 86 a 86 a 86 a 6.00 a 0.17 a
Vocabulary: DELV Semantic (cut-off = SS 6, PR 9) 71 86 a 64 2.40 0.22 a
CTOPP Nonword Repetition (cut-off = SS 6, PR 9) 57 100 a 36 1.56 0.00 a

Note. Cut-off refers to the criterion score used to predict the presence versus absence of a response to treatment. CTOPP = Comprehensive Test of Phonological Processing–Second Edition; DELV = Diagnostic Evaluation of Language Variation; SS = standard score; PR = percentile rank. Scores at or above the cut-off predict that the child will respond to treatment, whereas scores below the cut-off predict that the child will not respond to treatment.

a

Desirable value.