Why? Though ETS?s E-Rater proved adept at scoring so-called ?naked? essays based only on personal opinion, it couldn?t reliably handle questions that required students to demonstrate knowledge from the curriculum. State testing officials tried making lists of keywords the software could scan for: in history, for example, ?Queen Isabella,? ?Columbus,? and ?1492.? But the program didn?t understand the relationship between those items, and so would have given full credit to a sentence like, ?Queen Isabella sailed 1,492 ships to Columbus, Ohio.? Cost and time savings never materialized, because most tests also had to be looked at by human graders.
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