Policymakers, administrators, and advocacy groups have correctly diagnosed a major problem plaguing the teaching profession鈥攈igh rates of teacher attrition鈥攂ut have missed the mark in their prescriptions for fixing it, concludes a new report released July 30 by the New York City-based , formerly The New Teacher Project.
In essence, contends, most school leaders fail to identify and encourage the very best teachers to stay in schools. It attributes the phenomenon to what it describes as the K-12 field鈥檚 tendency to uncouple decisions about retention from discussions of teacher quality.
The consequences of these practices, the report concludes, have particularly affected low-performing schools, making it harder to develop a critical mass of effective teachers to sustain improvements. In such schools, the report estimates, a high-performing teacher who leaves will be replaced by an equally effective peer less than a tenth of the time.
Officials at the 3 million-member National Education Association largely second the report鈥檚 main thrust, despite some reservations about its recommendations.
鈥淚t鈥檚 a common-sense idea many of us who have been involved in education felt was true,鈥� said Segun C. Eubanks, the director of teacher quality for the NEA. 鈥淣ow we have some evidence that there鈥檚 a difference between good retention and bad retention.鈥�
Rates of teacher attrition estimated at anywhere from a quarter to half of new teachers in their first five years on the job have been the cause of much concern among policymakers, and spawned a raft of mentoring and induction programs over the past decade.
Feedback Valued
The issue has also been the focus of intense study, with retention rates being linked in separate research to teachers鈥� working conditions and performance.
For the report鈥攚hich was supported by funding from several foundations whose policy goals are generally in line with its conclusions鈥擳NTP officials examined the personnel records of some 90,000 teachers across four unnamed urban districts. It gathered available individual teacher 鈥渧alue added鈥� data for a subset of 20,000 teachers. (Value-added is a statistical methodology that uses student test scores to generate an estimate of a teacher鈥檚 impact on the academic progress of his or her pupils.) They coupled the data with information from surveys, interviews, and focus groups with the teachers.
Of the teachers studied, the group identified a subset of about 20 percent as 鈥渋rreplaceables鈥� because their students made two to three more months鈥� worth of academic progress compared with those taught with the average teacher in the district.
Among the report鈥檚 findings:
鈥� The school districts lost their most successful teachers at a rate comparable to the attrition of the least successful teachers.
鈥� 鈥淚rreplaceable鈥� teachers who experienced two or more of eight different recruitment strategies鈥攊ncluding advancement opportunities, regular performance feedback, and public recognition鈥攕aid they planned to stay at their schools nearly twice as long as other teachers.
鈥� In one of the districts studied, only a fifth of the lowest-performing teachers were encouraged to leave, while more than a third were given incentives to stay.
鈥� 鈥淚rreplaceable鈥� teachers were much more likely to stay at schools with a strong instructional culture in which principals set strong performance expectations for them.
The report reserves strong criticism for principals, who it contends have turned a blind eye to quality in retention decisions.
鈥淧rincipals tell themselves low performers are going to improve, and therefore they don鈥檛 have to address it; and they say there鈥檚 nothing they can do to retain high-performing teachers,鈥� said Timothy Daly, the president of TNTP. 鈥淏oth of those things we see as largely untrue.鈥�
Recommendations Offered
The report makes policy recommendations for more-strategic retention of teachers, several of which touch on hotly debated policy issues. They include paying the best teachers six-figure salaries; requiring principals to set goals for retaining 鈥渋rreplaceable鈥� teachers; monitoring working conditions; and dismissing teachers who, after remediation, cannot teach as well as the average novice.
Reaction to the report included some criticism about its methods. Matthew Di Carlo, a senior fellow at the Albert Shanker Institute, a Washington think tank affiliated with the American Federation of Teachers, noted in a blog post that the teachers identified in the report as 鈥渋rreplaceable鈥� are better described as 鈥減robably above average,鈥� and that, in three of the four districts, the growth-model estimates were based on only one year of data.
Scholars, meanwhile, struggled to fit some of the findings into the context of the increasingly complex body of research on the issue of teacher retention.
For one, the relative harmfulness of turnover remains a subject of some debate. Economists, including Eric A. Hanushek of Stanford University鈥檚 Hoover Institute, have that it鈥檚 the weaker teachers who tend to leave low-performing schools, a phenomenon that theoretically should improve student achievement.
But a published by the Washington-based National Center for Analysis of Longitudinal Data in Education Research added a new wrinkle to the debate: It showed that high levels of teacher attrition can depress student achievement even among students whose teachers stayed put.
Such mixed findings continue to leave educators guessing at the right balance to strike with retention, said Richard M. Ingersoll, a professor of education and sociology at the University of Pennsylvania.
鈥淚鈥檓 often asked, 鈥榃hat鈥檚 the optimum amount of teacher turnover?鈥� Mr. Ingersoll said. 鈥淚t鈥檚 a really hard issue. I don鈥檛 know the answer.鈥�
