On Wed, 09 Jan 2002 00:47:19 -0500, Derrick Coetzee
<[EMAIL PROTECTED]> wrote:
> Gary Klass wrote:
>
> > http://lilt.ilstu.edu/gmklass/COW/
>
> As other posters have noted: always beware the "obvious" implications of
> correlations. A common example is that drownings and ice cream sales are
>
Perhaps a bit off topic, but:
I don't think your market research observation is all that true.
Of course, we should all take survey based results carefully.
But (having formerly worked in market research) from what I've
seen, representativeness is an issue those folks are VERY well
aware of and do
Gary Klass wrote:
> http://lilt.ilstu.edu/gmklass/COW/
As other posters have noted: always beware the "obvious" implications of
correlations. A common example is that drownings and ice cream sales are
strongly correlated.
I think it worth noting that the students who watch more TV (or any of
True -- though I don't think the problem is with response rate -- The data come
from the National NAEP exam, the data points represent the average state math
score and the replies to a survey that I presume was administered to all
students taking the test -- since it is a part of the same database
"Gary Klass" <[EMAIL PROTECTED]> wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> http://lilt.ilstu.edu/gmklass/COW/
Does this prove that TV makes you bad at math or that if you're bad at math
you tend to watch more TV?
This is a bit like the fact that market researchers only glea
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