00100	Eve V. Clark
00200	Proc Conf on Developmental Psycholinguistics, Buffalo, 1971
00300	Comparison of models for development:
00400		grammatical-McNeill
00500		generalization-Anglin
00600		universal primitives-Postal,Bierwitch
00700		semantic feature-Clark
00800	essence of the current model is that it says that the method
00900	of language acquisition is to acquire some of the features
01000	of a word.  He will make mistakes because he is unable to
01100	make distinctions based on other features which are not in
01200	his semantic model for that word, so that a most common error
01300	will be over-extension, ie over-generalization.
01400	The criteria for over-extensions are movement, shape, size, and
01500	sound.  Color is not a criterion for over-generalization.
01600	
01700	Initially, less and more were not distinguished.
01800	Typical initial confusion between marked and unmarked forms (short,tall).
01900	Big,small was a dominant comparison, and included long,high,tall,wide.