Grades aren't designed to predict how well one will do at the next level. They are designed to summarize (impossibly) in a single character (or two) how one performed at the last level. The determinants of high school and college performance are not exactly the same, so, not surprisingly, high school grades don't predict college performance very exactly. But why are we expecting *anything* to predict more than, say, half of the variance in college performance? We have very little in the rest of psychology that predicts more than half of any cognitively and behaviorally complex performance.
Chris ....... Christopher D Green Department of Psychology York University Toronto, ON M6C 1G4 [email protected] http://www.yorku.ca/christo > On Feb 19, 2014, at 2:09 AM, Mike Wiliams <[email protected]> wrote: > > These studies of SAT and grades as predictors or criterion just highlight how > grades are poorly designed as a measurement device. What is their > reliability and validity as measures of performance. Somehow the college > board and SAT makers get the scrutiny that we don't apply to ourselves as > grade makers. The error goes both ways. > > Mike Williams > >> On 2/19/14 12:00 AM, Teaching in the Psychological Sciences (TIPS) digest >> wrote: >> Re: SAT and High School grade study > > > --- > You are currently subscribed to tips as: [email protected]. > To unsubscribe click here: > http://fsulist.frostburg.edu/u?id=430248.781165b5ef80a3cd2b14721caf62bd92&n=T&l=tips&o=34371 > or send a blank email to > leave-34371-430248.781165b5ef80a3cd2b14721caf62b...@fsulist.frostburg.edu --- You are currently subscribed to tips as: [email protected]. To unsubscribe click here: http://fsulist.frostburg.edu/u?id=13090.68da6e6e5325aa33287ff385b70df5d5&n=T&l=tips&o=34377 or send a blank email to leave-34377-13090.68da6e6e5325aa33287ff385b70df...@fsulist.frostburg.edu
