Teach For America (TFA) recently released a report describing some of the results from its alumni survey. The report provides interesting information about many alums’ careers. At the same time, however, TFA’s misleading presentation of the results and the organization’s unwillingness to share the underlying data are troubling.
Consider the following three charts:
The first of these charts claims to show “the mean value on the measure of total years teaching for each cohort,” the second ostensibly shows both the “mean and median total years teaching, by cohort,” and the third purports to show “the percentages of alumni in each Teach For America cohort that reported teaching 3 or 4, 5 or 6, or more than 7 years.” A reader could easily think these statistics apply to everyone who joined Teach For America between 1990 and 2010. But the charts depict statistics only for most TFA alumni who responded at…
View original post 1,538 more words