ISEN-ASTC-L is a service of the Association of Science-Technology Centers
Incorporated, a worldwide network of science museums and related institutions.
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I recommend "Try It! Improving Exhibits through Formative Evaluation", 
Samuel Taylor, editor, New York Hall of Science, 1992.  It's a very 
practical book, which I found helpful when I first started doing formative 
evaluation.  It's available for purchase through ASTC .

Elisa Israel
Research & Evaluation Coordinator
St. Louis Science Center
5050 Oakland Ave.
St. Louis, MO 63110
314-286-4613




Pérez Castellanos Leticia <[log in to unmask]>
Sent by: Informal Science Education Network 
<[log in to unmask]>
09/03/2004 10:09 AM
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        Subject:        Formative evaluation


ISEN-ASTC-L is a service of the Association of Science-Technology Centers
Incorporated, a worldwide network of science museums and related 
institutions.
*****************************************************************************

I'm currently working in a new interactive museum in Mexico City, we just 
started the process of evaluate some exhibits in the design and production 
phase (formative). I'm having problems to explain why this kind of 
evaluation does not need large statistical samples, great part of the team 
thinks that we need to have representatives samples and, I read in some 
classical texts (Screven, Griggs, Hein) that this is not necessary nor 
practical.

Does any one have a good methodological frame to pick good samples for 
this kind of evaluation? Or does any one could recommend me the "Formative 
evaluation handbook"? I prefer things I can consult through web because in 
Mexico is difficult to get those books, although we can buy some basic and 
interesting texts.

Thanks in advance

Leticia Pérez Castellanos
Research and Evalaution Area
Espacio Cultural y Educativo Betlemitas

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