An article appeared in the Dayton Daily News (DDN) about

teacher misconduct which included this figure:

The information in the figure came from this Ohio Department of

Education report. (The report shows a similar figure on pages 13.)

A quick examination of the chart reveals that the numbers do not

appear to add up. I.e. the total number of cases does not equal

the number of cases resulting in discipline or no discipline.

At first glance this appears to be a significant issue. I made

my own version of the plot, adding a sum that represents the

“Discipline” + “No Discipline” numbers.

Reading through the article, one finds that the number of cases

resulting in a decision are not necessarily the same cases

that were opened that year because sometimes cases take a while

to resolve.

However, the most important fact to note from the OH DOE report

is that 77% of these cases come from people applying for a

teaching license, not people who are actually teachers since

the department investigates people applying for teaching credentials

as well as current teachers referred to for misconduct. It’s also

important to note that the number of applicants increased and if

you normalize the number of cases opened by the number of applications

you get a very different picture.

which looks like the number of cases being investigated is driven

more by the increasing number of applicants, not some broader

problem with teachers.