Dissertation - Michael Becker

(32) Differences between high and non-high stem-final vowels in the lexicon vs. thedifferences between high and non-high vowels in the experiment, by size and place.25%CVC20%CVCV15%human responses10%CVt CVCkCVCp -5%CVCVk CVkCVCtCVCVCVpCVCVt0%-60% -40% -20% 0% 20% 40%5%-10%CVp-15%lexiconThe lack of correlation in (32) is probably only due to a subset of the points, mostnoticeably CVCÙ, CVCVÙ, and CVp. There is no sense, however, in which these are“outliers”, as they represent a sizable proportion of the data.The data for the CVCÙpoint comes from 18 lexical items and from 96 experimental responses (4 items * 24participants). The regression analysis below confirms the lack of correlation.When vowel backness is considered (33), the result is essentially the same: There is nocorrelation between the lexicon and speakers’ responses when the results are categorizedby size, place and backness (Spearman’s rank correlation test, S = 326.1, ρ = −.140, p >.1). Each point in (33) shows the difference in rates of alternation between back and frontvowels, by size and place. Positive values indicate more alternations with back vowels, andnegative values indicate more alternations with front vowels.38