Utilizing a
sophisticated value-added model built from 600,000
North Carolina
elementary student test scores during a 3-year period, an independent
research team has found that National Board Certified Teachers (NBCTs) are
far more likely to improve student achievement as measured by the state’s
highly touted standardized testing system.
The research team, led by labor economist Dan
Goldhaber of the University of Washington and
the Urban Institute, has noted that these findings “provide direct
evidence that the National Board for Professional Teaching Standards
(NBPTS) is identifying and certifying teachers who will raise student
achievement” and they “could put to rest some of the controversy in
education circles surrounding the national certification.”
In particular, the study concluded that National Board Certified Teachers
(NBCTs):
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Are more effective at raising student
achievement than teachers who pursue, but fail to obtain, NBPTS
certification.
-
Are more effective at raising student
achievement – outside of the year in which they apply – than teachers
who do not pursue NBPTS certification.
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Have a greater impact with younger students.
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Have a greater impact with low-income
students.
Students of NBCTs
improved an average of seven percent more on their year-end mat and
reading tests than students whose teachers attempted but did not earn
certification.
The influence of NBCTs was most pronounced for younger and lower-income
students whose gains were as high as 15 percent more when taught by NBCTs.
This is the first large-scale study using standardized tests to link NBCTs
and student achievement, and study results confirm that the NBPTS
assessment process identifies teachers who systematically produce larger
achievement gains. For a more complete analysis of the study,
please
visit our website at:
http://www.teachingquality.org/resources/html/NBPTS_Goldhaber.htm