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SAT concordance table - compare old and new SAT scores

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Replies to: SAT concordance table - compare old and new SAT scores

  • Mickey2DadMickey2Dad Registered User Posts: 30 Junior Member
    edited September 2017
    Using the 2017 percentile table released by CB, it is clear the concordance tables are off. For example, I have taken the 50%, 75%, 90%, 95%, 98% and 99% data. Then look at the which SAT score (or range) where this particular %tile FIRST appear on the tables. Using the data from 2011-15, the scores were 1480-90, 1720, 1930, 2050, 2150-60, and 2210-20, respectively. Using the concordance table to convert the old 2400 scale scores to the new 1600 scale scores, I got 1085, 1235, 1370, 1435, 1490, and 1520, respectively. But if I use the 2017 percentile table from CB, for these percentiles, the respective scores were 1055, 1195, 1320, 1390, 1450 and 1480. That represents and overestimation of the new SAT scores using the concordance table, across a great distance over the curve, and fairly uniformly by about 40 points. This may not sound like a lot, but most parents(students) could tell you the importance of that extra 40 points in admissions, scholarships cut off etc. I doubt CB would revise the concordance table with the 2017 actual test data, but I do wish admissions office take notice of this discrepancy and not causing unfair undue harm to students.
  • suzyQ7suzyQ7 Registered User Posts: 3,045 Senior Member
    The original concordance tables published were based on the PSAT given in Fall 2015 and on small samplings they did before that. The Fall 2015 PSAT was too easy at the top levels - and the scores were high. They have subsequently tightened up the actual SAT tests given - therefore the concordance originally published was off. They are now publishing new concordance to reflect actual SAT sittings from 2016 and 2017. That is my theory.
  • YnotgoYnotgo Registered User Posts: 3,581 Senior Member
    That's what it looks like, except that the scores were higher at the high end on the 2016 PSAT than on the 2015 PSAT.. Maybe that was accidental.
  • KennyTKennyT Registered User Posts: 13 New Member
    Mickey2Dad Good stuff. In addition, the 40 point difference is just comparing the new SAT with the old. However, when you compare the new SAT with the Concordance Table predictions the difference is more like 100 points.
  • evergreen5evergreen5 Registered User Posts: 410 Member
    As previously suspected, the questionable accuracy of the College Board's 2016 Concordance Tables will infect the new, not-yet-published Common Data Sets, as all Old scores from last admissions season will be converted to New via the Concordance Tables - and then mixed with actual New Scores - to come up with the middle 50 reported on the CDS. In spite of the higher actual percentiles reported by the College Board for the Class of 2017 a month or so ago. Thanks, College Board. I am thinking the CDS ranges will be artificially high due to reporting Old scores as higher, concorded ones. It may not seem like this matters, but this may cause kids to undershoot if the kids' scores are around or under an artificially high 25th percentile.

    New Common Data Set format for 2017-18 http://www.commondataset.org/docs/2017-2018/CDS_2017-2018.pdf
  • am9799am9799 Registered User Posts: 710 Member
    This method is very wrong. They should just leave the scores as is.
  • suzyQ7suzyQ7 Registered User Posts: 3,045 Senior Member
    So stupid. They can now say that the new SAT is so much better because kids are scoring higher!
  • homerdoghomerdog Registered User Posts: 1,687 Senior Member
    I suppose this will all be sorted out for the next year? Then, they will just be using actual new SAT scores and no old concorded scores. Then, people will wonder why all of the SAT averages went down...
  • YnotgoYnotgo Registered User Posts: 3,581 Senior Member
    Yes, I think they will jump up for a year, especially at colleges where a lot of the students took the old SAT (which won't be shown on the CDS). Then they will drop the following year. And people will wonder and compare apples to oranges. But the College Board won't change the concordance table.
  • CaviteeCavitee Registered User Posts: 4 New Member
    This is a somewhat unscientific and definitely limited in scope attempt to get some correlation between new SAT scores and ACT scores. By looking at 9 schools actual 50% results for the class of 2021.
    The schools and scores results are as follows:
    UVa : SAT 1330 - 1490
    ACT 31 - 34

    UNC : 1270 - 1450
    28 - 33

    Davidson : 1290 - 1460
    30 - 33

    Colgate : 1400 - 1520
    32 - 34

    Rhodes : 1250 - 1410
    27 - 32

    Vanderbilt : 1430 - 1570
    33 - 35

    William and Mary : 1300 - 1480
    29 - 33

    Tulane : 1410 - 1500
    31 - 34

    Tufts : 1410 - 1540
    31 - 34

    Using these scores the following can be said:

    ACT SAT
    27 1250
    28 1270
    29 1300
    30 1290
    31 1330 - 1410
    32 1410
    33 1430 - 1490
    34 1520 - 1540
    35 1570

    Obviously, just a small sample size and I'm also making the assumption that schools are looking at the ACT and SAT scores as interchangeable and equal.
  • homerdoghomerdog Registered User Posts: 1,687 Senior Member
    edited November 2017
    @Cavitee Are these SAT scores truly new SAT scores and do they not include old converted SAT scores?
  • CaviteeCavitee Registered User Posts: 4 New Member
    To the best of my knowledge, these are published actual SAT results from the class of 2021 for each school listed. I excluded any that referred to concordance or conversion.
  • IzzoOneIzzoOne Registered User Posts: 212 Junior Member
    @Cavitee, I think you also need to make sure you are showing admitted vs admitted or enrolled vs enrolled. For most schools admitted is higher than enrolled. It looks like you have some of both. I guess as long as your SAT and ACT are the same, it should work.
  • wisteria100wisteria100 Registered User Posts: 3,139 Senior Member
    @cavitee - but the class of 2021 would have a combination of the old SAT and the new SAT.
    A theory I have heard is that for the class of 2021 SAT takers, the stronger kids took the SAT early (old version) as they tend to be prepared earlier and then weaker kids took the SAT later and took the redesigned version. This could explain why some schools reported data that does not show the redesigned scores higher than the old version, despite the concordance table those scores should be higher.
  • homerdoghomerdog Registered User Posts: 1,687 Senior Member
    All CDS SAT numbers include old SAT that was concorded and added to the new SAT numbers. If you got your numbers there, then these SAT numbers are still skewed. Plus, when I look at ACT versus SAT numbers for any school, I don't think it tells the real story. I think more kids do better on the ACT so those ACT numbers are probably from kids who didn't (or couldn't) score as well on the SAT. I know there are concordance tables for a reason but sometimes I think admissions really should only compare SAT kids to SAT kids and ACT kids to ACT kids. It's really not apples to apples.

    Maybe it's anecdotal but I know a lot of kids who took the ACT cold and got a 32-33 but, when they took the SAT cold, they scored well below a 32-33 condorded SAT score. As much as people want to believe that they test the same things, I really don't think the tests are equal. You have to be a certain type of student to be able to move fast on the ACT to get a good score. You need to be a particularly strong reader to do well on the SAT. I guess that's part of the problem. Tests scores only tell you so much, yet schools continue to put importance on them.
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