Hello There, Guest!  

[ODP] - Parents’ Income is a Poor Predictor of SAT Score

#10
@menghu1001

“Therefore, there is no possibility to say which one has the strongest effect.”
“If you're not convinced, you must explain me why and where I am wrong.”

You think, (correct me if I’m wrong) that R^2 underestimates the true explanatory power of a model, and that MR underestimates the true explanatory power of a variable because it only includes direct effects. So, if my model can achieve an R^2 of 0.942, then adding in those indirect effects could add up to 0.058 to the coefficient of determination, and you want me to think that such a miniscule change would so profoundly transform my model that, in its current form, “there is no possibility to say which [variable] has the strongest effect.” I would say that my study is evidence that you misunderstand MR.

“why would you think the regress. coeff. are necessarily comparable ?”

Since they are not comparable, any semblance to the real world is just a coincidence. Here is a list of coincidences found in my data:

1. Asian race improves math score.
2. Asian race somewhat hurts verbal score.
3. The racial variable always matches the national reports of racial gaps (i.e. always positive except for Asian race with verbal scores).
4. A study that includes all these races, but singles out Black people as the lowest group and Asians as the highest group would be expected to show small effects for Asian race because they score closer to the majority race.
5. Affirmative action exists, and it allows certain minorities to achieve levels of income and especially levels of education beyond what their SAT scores would predict. Therefore, a racial variable should matter more at higher incomes and especially at higher education levels.
6. The higher influence of education compared to income matches Cohen’s d advantage magnitudes.
7. The higher influence of education matches expectations based on high estimated hereditary influence on the SAT and high bivariate overlap with GCTA.
8. Having at least a high school education is such a powerful norm in the US that it is extremely common, so much so that the designation of high school graduate should be pedestrian and uninformative.
9. Students who take the SAT in ACT states probably tend to be smarter than those in ACT states who don’t.
10. SAT participation rates are declining over time.
11. More populated states tend to be SAT states.
12. The Flynn effect is thought to have ceased in the US.

These are all just coincidences, and I’m sure that you could find just as many notions suggested by my data that are contradicted by real-world observations. If not, my study might prove magical forces are at play.

“I hope Matlab is free”

I don’t think so. Torrents are free but illegal and, therefore, strictly forbidden!

@csdunkel

“Please spell out the full name before using the SAT and ACT”

I don’t think they officially stand for anything anymore. The SAT stood for Scholastic Aptitude Test until 1990, then Scholastic Assessment Test until 1993, when it became a pseudo-acronym. ACT stood for American College Testing, but I think it is a pseudo-acronym, too.
 Reply
 
Messages In This Thread
[ODP] - Parents’ Income is a Poor Predictor of SAT Score - by nooffensebut - 2014-Jun-04, 00:49:06
RE: [ODP] - Parents’ Income is a Poor Predictor of SAT Score - by Duxide - 2014-Jun-04, 10:05:19
RE: [ODP] - Parents’ Income is a Poor Predictor of SAT Score - by Meng Hu - 2014-Jun-08, 01:56:17
RE: [ODP] - Parents’ Income is a Poor Predictor of SAT Score - by Philbrick Bastinado - 2014-Jun-08, 01:59:35
RE: [ODP] - Parents’ Income is a Poor Predictor of SAT Score - by Meng Hu - 2014-Jun-08, 02:40:46
RE: [ODP] - Parents’ Income is a Poor Predictor of SAT Score - by Emil - 2014-Jun-08, 15:27:37
RE: [ODP] - Parents’ Income is a Poor Predictor of SAT Score - by nooffensebut - 2014-Jun-11, 07:01:57
RE: [ODP] - Parents’ Income is a Poor Predictor of SAT Score - by Meng Hu - 2014-Jun-11, 21:17:30
RE: [ODP] - Parents’ Income is a Poor Predictor of SAT Score - by csdunkel - 2014-Jun-11, 22:42:00
RE: [ODP] - Parents’ Income is a Poor Predictor of SAT Score - by nooffensebut - 2014-Jun-11, 23:33:21
RE: [ODP] - Parents’ Income is a Poor Predictor of SAT Score - by Meng Hu - 2014-Jun-14, 23:04:00
RE: [ODP] - Parents’ Income is a Poor Predictor of SAT Score - by Emil - 2014-Jun-12, 00:22:29
RE: [ODP] - Parents’ Income is a Poor Predictor of SAT Score - by nooffensebut - 2014-Jun-15, 03:03:29
RE: [ODP] - Parents’ Income is a Poor Predictor of SAT Score - by Emil - 2014-Jun-15, 14:57:16
RE: [ODP] - Parents’ Income is a Poor Predictor of SAT Score - by nooffensebut - 2014-Jun-15, 15:49:58
RE: [ODP] - Parents’ Income is a Poor Predictor of SAT Score - by Meng Hu - 2014-Jun-16, 00:34:23
RE: [ODP] - Parents’ Income is a Poor Predictor of SAT Score - by Emil - 2014-Jun-15, 17:12:11
RE: [ODP] - Parents’ Income is a Poor Predictor of SAT Score - by nooffensebut - 2014-Jun-16, 01:51:23
RE: [ODP] - Parents’ Income is a Poor Predictor of SAT Score - by Meng Hu - 2014-Jun-17, 04:11:11
RE: [ODP] - Parents’ Income is a Poor Predictor of SAT Score - by Emil - 2014-Jun-16, 03:53:08
RE: [ODP] - Parents’ Income is a Poor Predictor of SAT Score - by Emil - 2014-Jun-18, 07:03:21
RE: [ODP] - Parents’ Income is a Poor Predictor of SAT Score - by Meng Hu - 2014-Jun-18, 18:06:28
RE: [ODP] - Parents’ Income is a Poor Predictor of SAT Score - by Emil - 2014-Jun-19, 05:38:32
RE: [ODP] - Parents’ Income is a Poor Predictor of SAT Score - by nooffensebut - 2014-Jun-21, 08:49:53
RE: [ODP] - Parents’ Income is a Poor Predictor of SAT Score - by Emil - 2014-Jun-24, 16:14:23
RE: [ODP] - Parents’ Income is a Poor Predictor of SAT Score - by Meng Hu - 2014-Jun-30, 18:18:16
RE: [ODP] - Parents’ Income is a Poor Predictor of SAT Score - by nooffensebut - 2014-Jul-01, 03:47:55
RE: [ODP] - Parents’ Income is a Poor Predictor of SAT Score - by Duxide - 2014-Jul-01, 14:08:44
RE: [ODP] - Parents’ Income is a Poor Predictor of SAT Score - by Meng Hu - 2014-Jul-02, 12:45:15
RE: [ODP] - Parents’ Income is a Poor Predictor of SAT Score - by nooffensebut - 2014-Jul-02, 17:51:06
RE: [ODP] - Parents’ Income is a Poor Predictor of SAT Score - by Duxide - 2014-Jul-02, 18:15:28
RE: [ODP] - Parents’ Income is a Poor Predictor of SAT Score - by Meng Hu - 2014-Jul-03, 01:29:16
RE: [ODP] - Parents’ Income is a Poor Predictor of SAT Score - by nooffensebut - 2014-Jul-03, 02:52:39
RE: [ODP] - Parents’ Income is a Poor Predictor of SAT Score - by Meng Hu - 2014-Jul-03, 03:25:11
RE: [ODP] - Parents’ Income is a Poor Predictor of SAT Score - by Emil - 2014-Jul-03, 16:05:01
RE: [ODP] - Parents’ Income is a Poor Predictor of SAT Score - by nooffensebut - 2014-Jul-03, 22:09:13
RE: [ODP] - Parents’ Income is a Poor Predictor of SAT Score - by Emil - 2014-Jul-03, 23:13:46
RE: [ODP] - Parents’ Income is a Poor Predictor of SAT Score - by nooffensebut - 2014-Jul-04, 01:24:51
RE: [ODP] - Parents’ Income is a Poor Predictor of SAT Score - by Emil - 2014-Nov-06, 02:52:41
 
Forum Jump:

Users browsing this thread: 1 Guest(s)