Texas’ graduation rate is 3rd or 4th in the nation, depending on your ranking method

Yesterday, the US Department of Education released a data table of state high school graduation rates, thus undoubtedly prompting every state governor’s office to go into damage control or celebration mode. My guess is only the top 10 states had the latter option, but I digress.

Texas’ Governor Perry wasted no time in getting the word out about the state’s 86% rate:

Given Texas’ notorious historical high school dropout problem, I rushed to Google News to see if this were actually true. It was there I saw 3 separate Texas news sources – 2 from Austin, 1 from Dallas – reporting 2 different rankings for the state:

Google News
3 Texas news sources, 2 different rankings

So which is it, folks? Is Texas ranked 3rd or 4th in the nation? Governor Perry’s office says 3rd, but we all know politicians prefer to pick the most favorable numbers, and Perry’s office might have just hit Google News as I did and picked the best one they saw.

I went back to the original story, and opened the original PDF in Adobe Acrobat directly from the URL (Thank you, Windows shell). Then I converted the PDF to an Excel Workbook via File -> Save As -> Spreadsheet -> Microsoft Excel Workbook. I opened the resulting file in Excel and, after deleting some extraneous cells, performed an expanded sort on the All Students column. As you can see in the file attached below, Governor Perry’s office – and The  Republic – is correct: Texas’ high school graduation rate is indeed 3rd in the nation if you use dense ranking (my preferred methodology for anything). If you use standard competition ranking, the state ranks 4th.


As an engineer, I prefer dense ranking from a resource selection perspective. Standard competition ranking is misleading for that purpose because it implies in this case that there are 3 other distinct graduation rates above 86% when in fact there are only 2.

Before we all pop the champagne though, the Department of Education cautions:

The new, uniform rate calculation is not comparable in absolute terms to previously reported rates. Therefore, while 26 states reported lower graduation rates and 24 states reported unchanged or increased rates under the new metric, these changes should not be viewed as measures of progress but rather as a more accurate snapshot.


Author: jdrch

ISTJ, Rice Owl, UF Gator, mechanical engineer. STEM, sports, music, movies, humor. Account mine only & unaffiliated.


Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )


Connecting to %s