Simfish/InquilineKea's Thoughts

April 6, 2008, 6:32 pm
Filed under: Uncategorized

If you’re trying to measure the correlations of tests, you have to measure the correlation of that test with knowledge specific to the person (or in some cases to a person’s capability)

but your measurements are biased by several factors. (a) that your tests are so similar to tests that are used to “determine” the people who may be given resources that others wouldn’t get in such a way that it partially measures accessibility to such resources rather than intrinsic talent, (b) that your tests are so similar to tests used for institution admissions that they end up measuring what the institution ends up teaching you rather than intrinsic talent. But actually even subject based tests (when idealized) tend to capture not only subject-based knowledge, but also a variety of other factors that tend to produce that subject-based knowledge [a person who learns the subject material in 1 year is not equal to one who learns it in 5 years]. Of course this becomes less of a problem if you measure other factors in addition to the test.


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