<p>"(Trust me. I discussed this with some of Julian's researchers.)"</p>
<p>Oh, I do trust you. I remember from a past thread on a similar subject that you discussed this issue with the SET researchers before dediding on the benefits of accelerated programs for your D. And that, in spite of this, I would still decide to argue the subject must represent some kind of death wish. :)</p>
<p>Well, since I am not afraid of being shot down in flames, allow me to wonder about some finer points: </p>
<p>*At that level, the correlation between math or verbal scores and middle school basic instruction is probably nil, if not negative." Is largely true. It is nil, not negative. *</p>
<p>Here I assumed that the were would not be much correlation between the "instruction" and the math and verbal scores. Isn't it correct that there are cases of negative correlation between math and verbal scores? </p>
<p>*"What the out of level testing appears to measure has nothing to do with past instruction. But, the same observation holds for much further down the scale." *</p>
<p>Here again, I assume that basic instruction should account for a fraction of the "primary points" being from 200 to 450 in average, and from 200 to 550 for selective high schools.</p>
<p>Lastly, regarding the pools. Are you positive that that the statistics quoted by SV2 only compare an "eligible pool is the top 3% of the grade cohort." with the entire cohort. I understand that a comparison of 200,000 students taking the early tests loses value when the standard is established for an overall population of 2,000,000. However, for some reason, I do not see how the statistics for the early testers represent the TOP 3% of the available population. In other words, I believe that the samples may have different sizes and different attributes, but that it may NOT represent such a high selective number (97 percentile). </p>
<p>If the early testers really represented the top 3% of the student cohort for that grade, the comparisons between the early scores and the senior scores would HAVE confirmed your point by a huge margin. If 15% of seniors earn a score oof 650 but only 20% of the sample of early testers score a 500, the comparison really becomes 15% versus 3% of 20% or .6% when controlling the population. </p>
<p>I realize that the TIP program is atypical. However, I have good reasons to believe that not all the students who took a SAT in 7th or 8th grade had been "qualified" or "preselected". I know that at the middle school I attended, everyone had to sit for the Duke TIP. </p>
<p>Am I missing something?</p>