Showing posts with label Educational Testing Service. Show all posts
Showing posts with label Educational Testing Service. Show all posts

Saturday, March 15, 2014

Salman Rushdie Is Wrong! Multiple Choice Tests Are NOT 'Stupid'!

Photo: Mutiple choice test form for study

Last night, on a segment of  HBOs' Real Time on which the new changes in the SAT were being discussed, I was confounded to see and hear Salman Rushdie blurt out: "The SAT is a stupid test because multiple choice questions are stupid!"

While Andrew Sullivan and Bill Maher tried to steer him into a more sober perspective, it was clear it was a hopeless task. The SAT was mostly multiple choice, hence was 'stupid'. I have news for Rushdie: for making such a remark he is stupid.

We are talking of a test that in many cases is needed as a discriminator, given relatively few places are available in relation to the tens of thousands of applications received. This was also the point made in a New York Times magazine piece on the SAT last Sunday, but from the more comprehensive perspective that we cannot just shelve the test as some universities, i.e. Wake Forest, have done.  As one administrator noted, you can say what you will, but with limited spaces you still need a way to differentiate by outside independent testing, and hence the process is called 'differentiation'.

The basis here is analogous to discerning the quality of college grads (using the GRE, say for eligibility for grad school), only now we are looking at high school grads wanting to attend an 'elite' college. How do I know (say as an admissions officer), that an "honor roll"  HS grad from Podunk High in Mayberry, NC is in the same league as one from Stuyvesant High in NYC? They both show a 97% average, but are they really the same and do both deserve entrance into Yale?  The only way to really tell is to apply an independent assessment, and this is exactly where the SAT comes in. In a similar way, one of the only ways to differentiate the college grads is to use the GRE- since many may have attended schools that are mired in grade inflation.

Next: the best way to achieve this differentiating, given one is assessing MILLIONS, is the multiple choice aptitude test (or achievement test, as is generally the case now).  It is simply impractical and infeasible to do painstaking evaluation for actual worked out "solutions",  say to math problems, given the inefficiency and laborious,  time intensive nature of such a task.  In addition, the MC test lends itself to machine marking which means the results are obtained in an expeditious manner and the potential college attendees aren't kept in limbo for months.

My point here is that Rushdie is way off base, and indeed, multiple choice tests can be excellent if prepared using intelligent parameters, criteria. To therefore write off all such tests as 'stupid' is not only ignorant but discloses an alarming lack of awareness in a person whose writings I had long respected.

Obviously, however, multiple choice testing is not appropriate for all conditions! For example, when I taught space physics and calculus physics I NEVER ever used such tests. The student was required to work out a given problem in detail, say:

 A proton moves in a uniform electric and magnetic field, with fields given by:

E = 10 V/m (x^)

B = 0.0001 T (z^)

where '^' denotes vector direction.

a) Find the gyrofrequency and the gyro-radius

b) Find the proton's E X B drift speed

The student would then hand in roughly one and a half pages to show his approaches, techniques, how he (or she) obtained the respective solutions, and I would award marks accordingly.  But though the marking was time consuming, I'd only be grading perhaps 20 papers.  Meanwhile, an SAT patterned along an analogous format would require vastly more human labor. Machines wouldn't be able to parse subjective types of response, say if the student wrote:

a = (-r^) (v_perp^)^2/ r

as a "centrifugal" acceleration instead of a centripetal one. And so, there'd have to be extended discussions on what to allow and what not to allow in the scoring regimen.  Based on such vast manpower needs, I could see the ETS going bankrupt after just one examination cycle.

Sullivan also pointed out the 11-plus, or "common entrance examination" which btw, is still used in Barbados. Given the island only has a relatively small number of places to offer in its elite secondary schools, then the five thousand or so primary school students who take the test each year are differentiated based upon multiple choice tests, though yes there is an essay section. Manpower for marking those is generally achieved by having all the secondary school teachers come in and mark the required papers using a defined marking scheme issued by the Ministry of Education. However, somehow I don't see the ETS having millions of secondary school teachers come in and mark any kind of long form SATs, apart from the security issues.

The fact then is irrespective of whatever changes are made to the SAT they won't remove the multiple choice basis, which would be ludicrous and counterproductive. Rushdie ought to have thought that out more.  Having said that, what can be done is to remove the need to apply 'tricks' to save time and gain a higher score. In this regard, all MC questions or problems ought to have such criteria applicable that there are NO short cuts one can take apart from say using plain old common sense.

In this way the advantage of SAT prep tutorials can be removed, or at least one hopes! (Though some amount of practice is always beneficial and as I noted in an earlier post, the ETS plans to provide that with online practice tests.)

The multiple choice format then is here to stay, certainly at the level of assessing students coming out of high schools (or colleges, for the GRE). We need objective ways to ensure educational attainment that can be easily compared - 'apples to apples'. Like it or not, the multiple choice format is the best we have now given the numbers entering college, or grad school, say after the first degree.

Sunday, August 11, 2013

Why So Many Past Aptitude Tests Are No Longer Accepted by Mensa

Well, not only by Mensa, but other high I.Q. societies, as well, including Intertel and the Poetic Genius Society. The sad bottom line fact for most wannabe Mensans (and Ilians, etc.) is that if they wish to join these societies today they had better have taken the SAT, GRE, PSAT, ACT tests before they became inapplicable. If their past test evidence doesn't make the cut then they will have to sit the official Mensa test in order to qualify.

The question of no longer accepting the SAT actually was answered at some length by Abby F.Salny (Ed. D.) in the March, 1994 issue of the Mensa Bulletin (p. 9) in response to a reader's question. The letter writer asked:

"Please tell me why Mensa will not accept the new SAT results as evidence for admission to Mensa. Is there some new aspect of the SAT test that makes it invalid for Mensa use?"

Dr. Salny responded:

"Many Mensans have asked why we do not accept the 'new' SAT scores or the 'new' MCAT scores. This is not only an explanation but a possible philosophical explanation of the changes in the test.

The ACT went to content mastery testing some time ago. That means they were measuring learned knowledge and achievement. The SAT has not only changed to content achievement but has even changed its name from the Scholastic Aptitude Test to the Scholastic Achievement Test. The Medical College test has also gone content-oriented with two major sections, Physical Sciences and Biology.

Mensa's Constitution says 'IQ test or equivalent'. This means we can take a test that measures learning aptitude, but not a test that measures exclusively what has been taught in school. The whole purpose of Mensa was not to reward high scholastic achievement but to recognize intellectual giftedness. The two are not synonymous.

--- In short, any test that we have rejected, or that we will reject in the future, has changed content from IQ or equivalent to content mastery. Our Constitution mandates this and we are trying to follow our Constitution."

This means that now even the GRE (since Oct., 2001) cannot be considered a true aptitude test and a valid basis for evidence to qualify for Mensa membership. The American Mensa, Ltd. website makes it clear what past tests are still accepted as evidence for qualifying and which are now content -dominated so no longer are. These include:



ACT Compositeprior to 9/89  (29)29
effective 9/89 ( N/A)N/A





GMAT (Percentile rank of verbal + quantitative)** (95)95




GREprior to 5/94 (V+ Q = 1250)1250
scored from 5/94 to 9/01 (math + verbal + analytic = 1875)1875
effective 10/01 (N/A)N/A





Henmon-Nelson   (132)132




LSAT***prior to 1982 (662)662
1982 through 5/91 (39)39
effective 6/91 (163)163




Miller Analogies Test (MAT)prior to 10/04 (raw score 66)66
scored after 10/04 (total group percentile score 98)98




PSAT (taken in junior year)prior to 5/93 (180)180
effective 5/93 (N/A)N/A





PSAT (taken in senior year)prior to 5/93 (195)195
effective 5/93 (N/A)N/A





SAT or CEEBscored prior to 9/30/74 (1300)1300
scored from 9/30/74 - 1/31/94 (1250)1250
scored after 1/31/94 (N/A)N/A


So, if you have SATs from 1974 through 1/31/94 you can qualify if your Verbal-Math total is 1250 (if before 1974, it needs to be 1300). If you are using the GRE (Graduate Record exam)  prior to May, 1994, the total needs to be 1250. If after that date but before 10/01 then the verbal, quantitative and analytic total must come to 1875. After 10/01 it's no go, you will either have to bring up an earlier SAT test, or take the Mensa test.

The point is that prospective candidates can't blame Mensa or the other organizations which are just following their own prescribed rules. If they must blame anyone it's the ETS (Educational Testing Service) or other test manufacturers. But before you do, be mindful they are not beholden to providing any IQ equivalent aptitude tests, but rather  to satisfying the demands of colleges own evolving admission standards and requirements. The point is that the priorities of universities and colleges need in no way conform with those of Mensa, Intertel et al.

Oh, one other thing, you can't submit "blended" scores, i.e. from multiple test sittings, nor can you submit a "re-sit" score, e.g. for SATs. For those who wish to take the Mensa test (if no prior evidence test is allowable) you can obtain a practice test from American Mensa.  For those who are curious as to how their prior SAT or GRE scores translate into I.Q. check out: http://www.iqcomparisonsite.com/greiq.aspx



Side note: It's interesting that the yen for content mastery has even invaded previous military aptitude tests, i.e.



Army GCT****prior to 10/80 (136)136
effective 10/80 (N/A)N/A


Navy GCT****prior to 10/80 (68)68

effective 10/80  (N/A)

N/A