SCHOOLIO: Districts

Etna Union Elementary school district (Data source)

County of Siskiyou

Last steps

Compute the average

Sum	Average
0.0	NaN

Compute the Upper Control Limit

Simply compute the standard deviation and multiply by 3 and add to the average:

Compute the Lower Control Limit

Simply compute the standard deviation and multiply by 3 and subtract from the average:

For the lines, you have the data necessary to plot the chart.

THIS chart shows what the school system "wants"

NOT what school board members want.

NOT what superintendents want.

More about this chart.

See also: "Good" schools?

-- no performance data available --

Bogus Elementary

Students would perform better the more years in school IF the follow-the-schedule method wanted that.

But that's not what it "wants"...and it's not a coincidence this pattern repeats (repeatedly).

-- yearly progress data unavailable --

Schools in Etna Union Elementary