Thursday, November 27, 2008
SAT Redux
I'm teaching an Introduction to Statistics course this term, and we just did linear regression. I used the opportunity to dig out a study of freshman grades, and showed the the students how to make a predictive model using SAT and high school GPA. The data was from several hundred students, with ACT mapped to SAT scores according to standard formulas. High school grades alone explained 33% of the variance in first year college grades in this sample. Adding SAT bumped it up to 37%. This isn't much added information, given all the trouble and expense of the SAT. Maybe it's just our type of students, but for us, it's not worth the effort. Better would be an attitude and behavior survey like the CIRP.
Subscribe to:
Post Comments (Atom)
-
The student/faculty ratio, which represents on average how many students there are for each faculty member, is a common metric of educationa...
-
(A parable for academic workers and those who direct their activities) by David W. Kammler, Professor Mathematics Department Southern Illino... -
The annual NACUBO report on tuition discounts was covered in Inside Higher Ed back in April, including a figure showing historical rates. (... -
In the last article , I showed a numerical example of how to increase the accuracy of a test by splitting it in half and judging the sub-sco... -
Introduction Stephen Jay Gould promoted the idea of non-overlaping magisteria , or ways of knowing the world that can be separated into mutu... -
I'm scheduled to give a talk on grade statistics on Monday 10/26, reviewing the work in the lead article of JAIE's edition on grades... -
Introduction Within the world of educational assessment, rubrics play a large role in the attempt to turn student learning into numbers. ... -
"How much data do you have?" is an inevitable question for program-level data analysis. For example, assessment reports that attem... -
Inside Higher Ed today has a piece on " The Rise of Edupunk ." I didn't find much new in the article, except that perhaps mai... -
Introduction A few days ago , I listed problems with using rubric scores as data to understand learning. One of these problems is how to i...
No comments:
Post a Comment