New York state education officials, citing a computer glitch, have ordered a recalculation of job-performance “growth” scores given to thousands of principals and schools based on results of student testing last spring.
Officials described the impact of the computer error as small—affecting about one-half of 1 percent of more than 40,000 educators who received state performance ratings for the 2014-15 school year. In most cases, the error threw off the scores by no more than 1 point, they added.
State officials attributed the data-processing error to the American Institutes for Research, a Washington-based nonprofit organization.
