----- Original Message -----
From: "Kathleen Salkin" <[log in to unmask]>
Newsgroups: bit.listserv.c-palsy
To: <[log in to unmask]>
Sent: Saturday, January 07, 2006 10:08 PM
Subject: Re: now greta's stats


> Now, I'm really wondering...do you mean a third of your sampling will
> have average IQs, a third will have below-average IQs and so forth?
> Or do you mean this is a rule of thumb for the CP population as a
> whole?   What exactly is your hypothesis?
>
    It's imposiblle to obtain a truly ranom sample in this type of study.
Random being defined as every possible subject having the same chance of
being included. In this case, every 6 to 8 yr old CP..

> When I was in grad school, the sampling had to be truly random, with
> a control group to test it against.  Perhaps things have changed a
> great deal in the social sciences since I was a MS candidate?
>
> Kat
>
>
> On 7 Jan 2006, at 23:00, greta von der luft wrote:
>
>> OOPS I misspoke/typed. I meant kiddos with CP and average
>> intelligence or kiddos with CP and mild cognitive impairment. I was
>> trying to say that there was a range of intelligence....
>>
>> I know there is a rule of 1/3s. A third of the children with CP
>> will have average intelligence, a 1/3 with mild cognitive
>> impairment, and a 1/3 with severe cognitive impairment.
>> Sorry,
>> Greta
>>   ----- Original Message -----
>>   From: Brent Edwards<mailto:[log in to unmask]>
>>   To: [log in to unmask]<mailto:C-
>> [log in to unmask]>
>>   Sent: Saturday, January 07, 2006 9:03 PM
>>   Subject: Re: now greta's stats
>>
>>
>>   Perhaps I missed something here. At least I hope I did. But did
>> no one
>>   else catch this?
>>
>>> I ended up with a good cross section of kiddos with CP (hemiplegic,
>>> diplegic, quadriplegic; average to mild cognitive impairment...
>>
>>   ummm... What about some kids with no cognitive impairment at
>> all?? Like
>>   the kids that the people who post to this list grew up to be? Please
>>   Greta forgive me if there is something about the way your
>> research was
>>   structured that precluded the use of data from cognitive normal
>>   subjects. But if that is not the case, methinks I catch a whiff
>> of the
>>   old "all cp kids have cognitive impairment" meme. Those of us who
>> are
>>   not so impaired (who I'm guessing is just about everyone on this
>> list
>>   who has cp) aren't actually very fond of that piece of "conventional
>>   wisdom".
>>
>>   Brent Edwards
>>   Resident List Crank