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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 8.

Post-Test Probabilities for Scoring Method 1 Likelihood Ratios, Assuming a Prevalence Rate for SLI of 7%

Pre-Test
Probability of
Disorder		 Likelihood Ratios Post-Test
Probability
of Disorder
7% LH+a 22.66 61%
LH-b .05 .3%
a

Note: Likelihood ratios for TPPC scores on the NRT ≤ 54.

b

Likelihood ratios for TPPC scores on the NRT ≥77.