Deciding Which Teachers to Lay Off
David Prottas' letter on performance-based systems and teachers featured in New York Times
Seniority-based systems for promotion and dismissal have numerous virtues. Their application is simple, low-cost and transparent, with little potential for illegal discrimination. They reward employee loyalty and encourage work force stability and retention.
While I believe that performance-based systems are potentially superior, the critics of seniority systems should accept that it is difficult, time-consuming and very expensive to develop and implement valid measures of performance in many types of jobs, particularly teaching. A poorly designed system can be more costly, cumbersome and discriminatory without being more accurate in its ability to differentiate good teachers from bad.
Performance-based evaluation systems are common in the private sector. I would ask any employee who is clamoring for them to be applied immediately to teachers to answer a simple question: How fair and accurate do you think your annual performance appraisal was?
David J. Prottas
Garden City, N.Y., March 6, 2011
The writer is an assistant professor at the Adelphi University School of Business.