---------- Original Message ----------------------------------
From: Paul Brandon <[EMAIL PROTECTED]>
Reply-To: "Teaching in the Psychological Sciences" <[email protected]>
Date: Wed, 21 Sep 2005 10:37:03 -0500
>At 8:24 AM -0600 9/21/05, Martin Bourgeois wrote:
>>
>>I think I disagree. Student knowledge is certainly multiply
>>determined; individual diff's in motivation, ability, mood, time
>>spent studying, etc. all would contribute. Good or bad intructors
>>and easy or difficult assessment strategies may push the mean one
>>way or the other, but I would still expect a large class to tend
>>toward normality, whether the mean grade was an B- or a D+.
>
>How large must a class be to justify the assumption of normality?
>100?
>1000?
>-
Take the mean of the total enrolment in all classes.
MIchael Sylvester,PhD
Daytona Beach,Florida
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