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. Author manuscript; available in PMC: 2009 May 1.
Published in final edited form as: Cognition. 2007 Dec 20;107(2):479–500. doi: 10.1016/j.cognition.2007.10.010

Table 3.

Average n-gram statistics for the Experiment 1 test materials relative to the exposure sentences; frequencies computed with one pass through the exposure corpus

3A. Statistics computed relative to the P-Language exposure corpus
Grammatical items Ungrammatical items Ratio
Unigram frequency: 8.00 7.50 93%
Bigram frequency: 4.13 1.71 41%
Trigram frequency: 2.5 0.13 5%
Forwards bigram probability: 0.67 0.41 61%
Backwards bigram probability: 0.60 0.30 50%
3B. Statistics computed relative to the NP-Language exposure corpus
Grammatical items Ungrammatical items Ratio
Unigram frequency: 6.25 6.11 97%
Bigram frequency: 3.23 1.35 42%
Trigram frequency: 1.75 0.13 7%
Forwards bigram probability: 0.65 0.34 52%
Backwards bigram probability: 0.52 0.21 40%