13.07.2015 Views

Dissertation - Michael Becker

Dissertation - Michael Becker

Dissertation - Michael Becker

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level ordered factor, with non-alternation as the lowest level, alternation as the highest level,and optional alternation as the intermediate level.Five independent variables were considered:• Size: a three-level unordered factor, with levels corresponding to mono-syllableswith a simplex coda (CVC), mono-syllables with a complex codas (CVCC), andpoly-syllables (CVCVC). CVC was chosen as the base level.• Place: a four-level unordered factor, with levels corresponding to coronal, palatal,labial and dorsal. Dorsal was chosen as the base level.• High, back and round: each of the three features of the stem-final vowel was encodedas two-level unordered factor.The base levels chosen were non-high, front andunrounded.First, each of these five predictors was tried in its own model, to assess each predictor’soverall power in the lexicon (27).This power is measured by R 2 and by the model’slikelihood ratio (Model L.R.), which comes with a number of degrees of freedom and ap-value. It turns out that place, high, size, and back are highly predictive of alternations, inthat order, and round isn’t 4 .(27) R 2 Model L.R. df pplace .482 1469 3

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