My state’s cutoff is always in the 3rd or 4th from the bottom of the 99 percentile ranks. This year’s SI table says the 3rd 99 rank from the bottom is a 207. Last year’s cutoff was a 218 - 11 points higher. This year’s published SI is pretty close to “sliding scale cutoff-12”
@payn4ward stated: “If it was sliding scale cutoff -12, his school alone would have ten times more NMSFs than last year’s.”
Found this on another thread. The commended has always matched the last 97th percentile on the understanding your scores. As you can see the cutoff scores have pretty much stayed the same from before the new test design in 2005. But that the pre-2005 and post 2005 through 2014 were all on a 240 point scale.
I might have been a little wrong about the 97th and commended. For 2005, commended is 203, but the 97th percentile ends at 204. So they went into the 96th percentile.
You are right that the new math section has much longer readings in it. However, I think the math language on the old test is trickier, It is really easy to misread the old math questions. I guess the length of the new math reading could be a problem for slower readers. It’s hard for me to judge because although I am pretty strong in math, I am stronger in verbal. (I had V 800 without much of a sweat, but only 780 in M – back in 1975. I still remember my father’s reaction: “What happened to the other 20 points?” He was a math teacher.) For this reason, I also can’t estimate so precisely how much harder the new reading passages would be for teenagers. I can tell the passages are harder, but they seem to me just a little harder. There are some hard passages also on the old SAT, and some of the questions are tricky. The CR passages in the last couple of practice tests in the Blue Book are really tough for most students. Is the Frederick Douglas passage harder than those? Anyone have a link?
If you log into the CB account of a PSAT test taker, you can see all the questions, passages, and answer explanations. I could copy and past the passage, but am not sure if it will break the forum rules.
I really want to take/see the math portion. Will they release it in due time? (My kids are all past this now so I don’t have access.) @Plotinus, with regular practice, even the “hard” problems on the old SAT became very routine. For example, the three dimensional right triangle problems were always very similar. I wish I had the “history” to make statements about the new test, but it’s too darn new at the moment. I think the brighter math student though will get bored, and clock out a bit and miss those final statements that ask for 8x instead of x at the end.
I’m also curious after reading student comments (that someone here linked?) about decimal math and long division in the non-calculator section, because there was nothing like that in all 4 practice SAT problems. I’m wondering if the PSAT was harder than projected, or if students were missing mental math shortcuts.
https://www.youtube.com/watch?v=HgQfbryW2qg
This (above) is a link to a CB webinar done in Nov, If you go to the time on the video at about 32.50, they discuss the info on the reports educators can access - there are school, District & state comparisons of data. If anyone can learn if that is based on “real” data (actual test-takers, then if so, the comparison to student to school to state would be useful to get a sense of where the student’s SI falls. If anyone gets that info, please share it here.
My students are supposed to get their PSAT booklets back in late January.
There is a lot of really bad number math in the Khan Academy practice material, with much worse numbers than the numbers in the official practice material, especially in the statistics problems. I think the bad numbers are supposed to be more “realistic”.
Yeah, I was pretty disappointed when I told my father my scores, and I was only 16 at the time . On the other hand, the 1975 ETS study (linked earlier) says that by 1973, scores were really inflated at the top of the curve, with 1973 V 800 equivalent to only a 1963 V 766 and 1973 M 800 equivalent to 1963 M 775. The 1953 equivalents were even lower. So I guess my dad was right.
I have a big question about the Applerouth link. He was saying how current scores are concording to lower percentiles from prior years (i.e. using the concordance tables). But isn’t CB defining “concordance” to mean a relationship of one score to another given the SAME percentile?:
“The term concordance refers to establishing a relationship between scores on assessments that measure similar (but not identical) constructs. Two scores are considered concorded when the percentage of students achieving each score is the same. For example, if 75% of a group of students achieve a score of X on one test, and 75% of the same group of students achieve a score of Y on a different test, score X would be considered con corded to score Y.”
(Understanding Scores, page 20)
Note what is said: “Two scores are considered concorded when the PERCENTAGE of students achieving each score is the same.” I would take that to mean the percentiles for each score (whether it be current-to-previous or previous-to-current) have to be equivalent. So if someone is concording a current score to previous scores and ends up in a different percentile doesn’t that mean something went wrong somewhere? Either the preliminary concordance tables are off, or the method of concording is somehow wrong, or the previous percentile tables are incorrect - or something?
Maybe the concordance tables are supposed to be over a population of all students, whether or not they take the test. And furthermore, maybe the actual kids that took the test this year varied in some significant manner from the kids that took the test last year…
That’s the only thing I can think of, which could make both concordance tables and percentiles somewhat accurate - even though they disagree with each other…
I think the importance given to concordance tables is overstated due to the differences in type and scale of the earlier exams to current PSAT. Somewhere @suzyQ7 has provided apt description of how the commended (50K) and state SI cut-offs (adding upto 16K) are determined and it’s futile to concord 2015 PSAT to past tests and make predictions. For me, the pertinent information is whether or not SI %tiles presented on pg 11 of “Understanding Your Scores 2015” by CB is accurate among 11th graders or not. That would clearly give you the commended SI at appx 97%ile (from 1.6M 11th grade test takers). Add to this, the numerical conundrum presented by @Dave_N in post #793 regarding expected fat-tails is question of the day. How will NMSC manage expected large number of students positioned at the bottom of the state’s SI cutoff for SF nomination.
Interesting point, @thshadow - hopefully they concord to users and not some broad general category of students. I’m really hoping they don’t have historical data on that latter group. If they do, then we really can’t use the concordance tables for anything having to do with National Merit.