Wednesday, August 19, 2009

ACT Scores Picture Too Blurry to Be Useful

While everyone should be happy to see that ACT scores for last year's graduating classes in the tri-county area remained stable or improved slightly [see Area ACT Scores Improve], those statistics are virtually meaningless without regression analysis of variables affecting the scores. The numbers taking the test vary widely from one high school to another and from one year to another.

Look at it another way. What would really be an accomplishment would be that the statistics on standardized testing did not continue to mirror the socioeconomic status of the students. Do the numbers mean that Wando High School (at an ACT of 22.9, above the national average) does the best job in education or that its relatively affluent and white student body would do that well regardless of how poor its curriculum was?

Do the numbers mean that Burke High (with an ACT of 15.7, well below the national average) does the worst job in educating its students or that its relatively poor and ill-prepared student body would have done even worse if not for its strong curriculum?

In fact, until taking the ACT is a graduation requirement and high schools become more diverse, such numbers will be but a blurry snapshot of educational progress.

2 comments:

Anonymous said...

Too bad we can't fire McGinley and hire you.
I'm so sick of her obsession with the numbers game.

Anonymous said...

To repeat them in their increasing order of offensiveness: First they give us Lies; if that wasn't enough they give us Damn Lies; but worst of all and causing the greatest damage they give us Statistics. How can any numbers be reliable when the people giving them to us are known to not tell the truth?