You can use a conventional paired t test. Although you have dichotomous
scores that does not mean they are categorical. Correct/incorrect is a
ratio scale of 1 unit.
Green/Red, Accountant/Psychologist are the type of categorical
dichotomies that bring in the nonparametric procedures like C
Hi
That is the same article I originally posted (see bottom of this message) as
what I thought was a BAD example of reporting about psychology, evolutionary
psychology in this case. Carol then responded with the WEIRDOs article, to
which I responding, pointing out with links how people like Bu
I liked them also and still do
but then and now we are too small a sample from which to generalize
Nancy M
LBCC
-Original Message-
From: Christopher Green
To: Teaching in the Psychological Sciences (TIPS)
Sent: Wed, Jan 16, 2013 11:15 am
Subject: Re: [tips] Professor says students
If I missed someone posting this article, I apologize. Whatever, there is
an interesting article in the NYT's (Darwin was Wrong about Dating) that
discusses the methods as well as the perspectives of the evolutionary
psychologists on the differences between the genders in their sexual
behavior pat
a hypothetical construct or is that how it is
in nature? And why do psychometricians
dig the normal curve?
And why would funding based on graduation rates be unrealistic?
michael
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On Tue, 15 Jan 2013 21:11:37 -0800, Christopher Green wrote:
>Time was that I would give history of psychology students a map test of
>European countries. On average, they got a little over 4 -- usually UK, France,
>Italy, and whatever country their ancestors came from. It got so depressing
>that I
Favorite saying from a former colleague in response to my complaints about
students and their general lack of interest in, well, pretty much anything I
was interested in:
"Remember: they're not like us."
m
--
Marc Carter, PhD
Associate Professor of Psychology
Chair, Department of Behavioral an
We are the ones standing in the front of the room… the rest of the folks in our
classes are outside the room doing other work with their lives. Our students
are wondering what kind of freaks we are, except for one or two students in the
class who, one day, will be standing in front of their room
This is true Nancy. But I remember learning maps and flags as a kid because I
liked them, not because some govt threatened me with a standardized test (or
even because some teacher decided to include them in the curriculum. Whatever
happened to the people who just have to know?
Chris
-
Chri
Hi
I think the argument in that paper was much over-stated. But even if =
somewhat true for psychology in general, I would think it definitely does =
not apply to evolutionary psychologists like Buss and Schmitt. Look at =
the countries represented in their work as far back as pre 1993.
http://
Hi
I would consider an alternative approach. For each ITEM, calculate the
percentage of students who passed that item. Then do a paired-difference test
of significance for pre vs post with items as the random factor (i.e.,
"subjects"). This will tell you whether there was an overall change.
The correct statistical test is called McNemar's Test:
http://www.medcalc.org/manual/mcnemar_test.php
It is specifically for dichotomous outcome data which is paired (repeated or
matched).
A modified Bonferroni more or less as you describe looks easy enough to do
manually, after extracting the p
Hi Annette
Perhaps McNemar's Test for significance of changes, for dichotomous data. For
each item, set up a table that looks like a 2*2 chi square but has "pretest"
and "post-test" as variables (in texts its usually labelled "before" and
"after") .
Posttest
- +
+ A B
Pretest
- C D
So e
I bet he does use rugs. I bet you do too. So there. :-)
Chris
---
Christopher D. Green
Department of Psychology
York University
Toronto, ON M3J 1P3
Canada
chri...@yorku.ca
http://www.yorku.ca/christo/
=
On 2013-01-15, at 6:13 PM, Claudia Stanny wrote:
>
>
>
> This i
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