Changes to Gleason files

[carla hudson Kam]

I apologize if the answer to this is somewhere already, but I couldn't find 
anything relevant when I searched old messages. 

I've been using various data files in classes for several years, and a 
question came up about one of them today, that seem curious. It's about the 
Nanette file (the mother transcript specifically, but it could be true of 
other parts of Nanette, or other children in the Gleason files). The 
version of the file I have (downloaded several years ago) contains a lot of 
overregularized past tense verbs produced by the Mother. It's a version of 
the file with a %mmor tier but no %gra tier, which should give people an 
idea of how old it is. One of my students was trying to figure out why this 
might be the case, and went and looked at the file on the website (In this 
particular class I give them excerpts in an excel file) and found that the 
overregularizations weren't in the file. I double checked that it's not 
just an issue with the excel file I created, and it's not, they 
overregularizations are actually in the .cha file I have.

My question is whether anyone knows when and how these changes were made to 
the files, and if there have been similar changes made to other files. Were 
the overregularizations in the original just transcription errors (although 
odd ones, since breaked and broke are very confusable)? If not, then the 
replacement correct forms are errors right?

Thanks for any and all assistance with this.
Carla Hudson Kam

Carla L. Hudson Kam
Associate Professor
Canada Research Chair in Language Acquisition
Department of Linguistics
University of British Columbia

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