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At 11:30 PM 8/28/01 +, Jim Callahan wrote:
>Eric Bohlman wrote:
>
> >And furthermore, not all the wrong answers are equally "bad." Someone who
> >would answer A or B must know quite a bit less than someone who would
> >answer C (in fact, it would tend to indicate that they had no concept at
>
At 10:43 PM 8/28/01 +, EugeneGall wrote:
>I got an email from Anand Vaishnav, the Globe reporter who did Friday's
>article
>on the math and stats problems in MCAS. Only about 50% of the 63000 10th
>graders in MA got median and range. I suspect that mean and range
>probably was
>the most po
Eric Bohlman wrote:
>And furthermore, not all the wrong answers are equally "bad." Someone who
>would answer A or B must know quite a bit less than someone who would
>answer C (in fact, it would tend to indicate that they had no concept at
>all of what the boxplot represented).
I don't belie
Dennis Roberts <[EMAIL PROTECTED]> wrote:
> if we take the infamous #39 item ... where the options were (if i recall)...
> A. mean only
> B. median only
> C. range and mean
> D. range and median
> well, even if we accepted this item as "fair" ...
> a student looks at the graph ... sees that th
I got an email from Anand Vaishnav, the Globe reporter who did Friday's article
on the math and stats problems in MCAS. Only about 50% of the 63000 10th
graders in MA got median and range. I suspect that mean and range probably was
the most popular incorrect answer (according to the MCAS graders
Robert J. MacG. Dawson <[EMAIL PROTECTED]> wrote:
> If indeed the scores are being reduced by hiding the easy questions
> among the harder ones, then I would say yes, this is a defect of the
> current system, and should be changed. It may be that the questions
> themselves ought to be more d
Rich Ulrich wrote:
> On 28 Aug 2001 06:38:49 -0700, [EMAIL PROTECTED] (Dennis Roberts) wrote:
>
>
>>SO, when bonds hits 73 ... what will people say vis a vis regression to the
>>mean?
>>
>
> "... steroids ..." ?
> (have to guess that for the 56 he already has.)
Hmmm. I would have suggested
At 01:33 PM 8/28/01 -0500, Jay Warner wrote:
>Suggest we step back a minute.
by de facto definition ... the MCAS tests ... are intended to convey ...
MINIMUM skills/knowledge that they expect all high school GRADUATES to have
... they certainly cannot purport to test and/or represent anything h
Suggest we step back a minute. What do we want the test to measure?
Could be recognition level knowledge, could be recall level, could be a
higher level. (these two are easy to do with multiple guess questions,
so they get used a lot.) A student who is experienced or adept at
dealing with mul
Title: Biostatistician Monthly
<[EMAIL PROTECTED]%2Ctxt
**
CREATED: August 21, 2001
-->
At 02:21 PM 8/28/01 +, NoSpam54 wrote:
> If there were an AP stats course, they would probably be using a
>college-level text that would be using a true Tukey boxplot, not the
>Harcourt-Brace/NCTS boxplot. I don't think it fair for students to know that
>the NCTS and the K-12 textbook writ
...o00}- XXX movies! -{00...
http://www.greatplugin.com/?id=015294
- It's the best XXX movies archive ever!
You realy should try it!!!
__
I have to make a correction to my yesterday's posting. I think
P{selected j different balls}= (sub(N)Csub(j)* sum M1!/n1!n2!...nj!)/N^M1,
with summation over all ni,i=1,...,j, 1<=ni[EMAIL PROTECTED]>...
> I assume you are interested in the expected value (E) of the number of
> different balls. The
On 28 Aug 2001 06:38:49 -0700, [EMAIL PROTECTED] (Dennis Roberts) wrote:
> SO, when bonds hits 73 ... what will people say vis a vis regression to the
> mean?
"... steroids ..." ?
(have to guess that for the 56 he already has.)
--
Rich Ulrich, [EMAIL PROTECTED]
http://www.pitt.edu/~wpilib/in
It depends on what you want to do. Sure, for learning about factor
analysis, it's fun to write your own fortran programs. It's also a
good way to learn to use IMSL routines. If you're heading towards
work in methodology and software development, it might be instructive
to write such a program.
Dennis Roberts wrote:
At 01:57 PM 8/27/01 -0300, Robert J. MacG. Dawson
wrote:
[snip] yeah but ... they could do that from day 1 ... in a CAT
format ... the
first time 10th graders take the test ... why wait till retake 3 or
retake 4?
why waste 10th graders time the first go round ...
A p
Hi,
you can calculate Tucker's congruence coefficient*. I guess you'll have to
do
this partly by hand, I don't know an SPSS procedure for this. Anyway, it
shouldn't be that hard, copying your facor loadings from the output table
to a new file..
HTH,
Johannes Hartig
* cf. Bortz, J., Statistik fuer
NCTS should be NCTM in my previous post
The NCTM web page, with links to their boxplot (different from the Tukey
boxplot) is at:
http://www.nctm.org/
For some reason, the NCTM boxplot extends the whisker to cover all data outside
the box, thus completely gutting the major role of the Tukey boxplo
Chris Olsen wrote:
>(1) I would think it highly unlikely that even your poor school districts
>are using textbooks from the circa 1976-1980 period. If (in the incredibly
>unlikely event that a textbook would actually last 20 years) any of your
>schools have such dinosaurs, the occurence of a Tu
At 11:13 AM 8/28/01 -0300, Robert J. MacG. Dawson wrote:
> If indeed the scores are being reduced by hiding the easy questions
>among the harder ones, then I would say yes, this is a defect of the
>current system, and should be changed. It may be that the questions
>themselves ought to b
Dennis Roberts wrote:
> of course, research eons ago has shown that test performance is optimized
> ... by having items in the order of easy to difficult ... IF there is a
> time limit where some examinees have to push to get finished
>
> now that's a thought ... maybe if the items WERE ordere
plus ... many good REAL stat packages do this so easily
MTB > rand 5000 c1;
SUBC> norm 100 10. < mean and sigma
MTB > dotp c1
Dotplot: C1
..
.
.:.
At 09:23 AM 8/28/01 -0300, Robert J. MacG. Dawson wrote:
>I wrote:
> >
>
> > > An obvious approach that would seem to give the advantages hoped for
> > >from the focussed test without the disadvantages would be just to group
> > >questions in the original test in roughly increasing order of
> > >
SO, when bonds hits 73 ... what will people say vis a vis regression to the
mean?
At 11:40 PM 8/27/01 -0400, Stan Brown wrote:
>Rich Ulrich <[EMAIL PROTECTED]> wrote in sci.stat.edu:
> >This was a topic a month ago. Just to bring things up to date
__
Please do NOT rely on Excel random number generator. It is an old one and is
not powerful at all (1 000 000 numbers). Efficient routines can be found at
the Cern.
Y.
There are
"David Winsemius" <[EMAIL PROTECTED]> wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> I quite agree wit
Hans Waldmann wrote:
Actually we need to evaluate whether factorial structures
>of 2 tests are similar enough, roughly, to assume they're parallel. For my
>own part I think one should use LISREL (or the like), constrain the loadings
>of one model to the other one, and evaluate (mis)fit. It shouldn
"Aron Landy" <[EMAIL PROTECTED]> wrote in message
3b8b6418$0$8507$[EMAIL PROTECTED]">news:3b8b6418$0$8507$[EMAIL PROTECTED]...
> Any ideas, anyone? I am thinking of using IMSL (which comes free with
Compaq
> Visual Fortran). Can I do better?
Any of the "standard" statistical packages should be f
"Dr. Hans-Christian Waldmann" <[EMAIL PROTECTED]> wrote in
message 9mfkde$986$[EMAIL PROTECTED]">news:9mfkde$986$[EMAIL PROTECTED]...
>
>
> Hi everybody!
>
> Sure thing that some will find this request annoying and pointless again,
> but there's still a lot of confusion about it. Yes, we do want
I wrote:
>
> > An obvious approach that would seem to give the advantages hoped for
> >from the focussed test without the disadvantages would be just to group
> >questions in the original test in roughly increasing order of
> >difficulty.
which, I think, answers Dennis' question.
Any ideas, anyone? I am thinking of using IMSL (which comes free with Compaq
Visual Fortran). Can I do better?
Aron Landy
=
Instructions for joining and leaving this list and remarks about
the problem of INAPPROPRIATE MESSAGES a
Hi everybody!
Sure thing that some will find this request annoying and pointless again,
but there's still a lot of confusion about it. Yes, we do want to compare
factor patterns. Actually we need to evaluate whether factorial structures
of 2 tests are similar enough, roughly, to assume they're
Marg wrote:
>
> Greetings..
> Can anyone suggest me what are the differences between Box and Jenkin
> Transfer function model and multiple regression model?
> Are there any good tutorials or freewares that deal with the Box and
> Jenkin Transfer function model?
The basic difference is that the T
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