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. Author manuscript; available in PMC: 2011 Jul 1.
Published in final edited form as: Lang Speech Hear Serv Sch. 2010 Apr 26;41(3):277–288. doi: 10.1044/0161-1461(2009/08-0096)

Table 7.

Scoring Method 2 – Likelihood Ratio Analysis for Total Percentage of Phonemes Correct (TPPC)

SLI (n = 29) TD (n = 47)
No. Prop. No. Prop. Likelihood
Ratio
(95% CI)		 Post-Test
Probability
of Disorder
≤ 54 12 .4138 1 .0213 19.43
(2.67–141.82)		 95%
55 – 66 10 .3448 2 .0425 8.11
(1.91–34.41)		 89%
67 – 76 6 .2069 11 .2340 .88
(0.37–2.13)		 47%
≥77 1 .0345 33 .7021 .05
(0.007–0.34)		 5%