zaterdag 11 december 2010

Verbal vs. mathematical aptitude in academics | Gene Expression

Verbal vs. mathematical aptitude in academics | Gene Expression: "
It isn’t too difficult to find GRE scores by intended major online. In reviewing articles/posts for my post below on anthropology I noted the distinction made between quant & qual methods, and aversions to regressions and scatter plots (or the supposed love of biological anthropologists for these tools). That got me wondering about the average mathematical and verbal aptitudes of those who intend to pursue graduate work in anthropology. I removed some extraneous disciplines which I don’t think add anything, and naturally I created three scatter plots, quantitative score vs. verbal score, writing score vs. verbal score, and writing score vs. quantitative score.

I was more interested in the spatial relationships between disciplines. But, I was a but surprised by the low correlations between quant and verbal scores at the level of disciplines. On the individual level there’s naturally some correlation. People who score very high in one are unlikely to score very low in another. That’s why the variance in scores of a simple 10 word vocabulary test can predict 50% of the variance in general intelligence. In any case, here are the r-squareds:

quant-verbal = 0

writing-verbal = 0.81

writing-quant = 0.08

So 81% of the variance in writing scores on the scale of disciplines can be explained by verbal scores. Below are the three scatter plots:



gre1gre2gre3

Some observations:

- Social work people have more EQ than IQ (this is not a major achievement because of the scale obviously).

- Accountants never made it into the “blue bird” reading group.

- Philosophers are the smartest humanists, physicists the smartest scientists, economists the smartest social scientists.

- Yes, anthropologists can read and write far better than they can do math.

The raw data below.

Major Verbal Quant Writing
Philosophy 589 636 5.1
English 559 552 4.9
History 543 556 4.8
Art History 538 554 4.7
Religion 538 583 4.8
Physics 534 738 4.5
Anthropology 532 571 4.7
Foreign Language 529 573 4.6
Political Science 522 589 4.8
Economics 504 706 4.5
Math 502 733 4.4
Earth Science 495 637 4.4
Engineering, Materials 494 729 4.3
Biology 491 632 4.4
Art & Performance 489 571 4.3
Chemistry 487 682 4.4
Sociology 487 545 4.6
Education, Secondary 486 577 4.5
Engineering, Chemical 485 727 4.3
Architecture 477 614 4.3
Banking & Finance 476 709 4.3
Communications 470 533 4.5
Psychology 470 543 4.5
Computer Science 469 704 4.2
Engineering, Mechanical 467 723 4.2
Education, Higher 465 548 4.6
Agriculture 461 596 4.2
Engineering, Electrical 461 728 4.1
Engineering, Civil 457 702 4.2
Public Administration 452 513 4.3
Education, Elementary 443 527 4.3
Engineering, Industrial 440 710 4.1
Business Administration 439 562 4.2
Social Work 428 468 4.1
Accounting 415 595 3.9







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