I have used Repertory Test and associated technology in vocational 
guidance and have found it to be particularly powerful methodology.  
I currently have a case study "in press" that describes a VG 
intervention with a client being made redundant.  Also, I have 
written a little in-house monograph on PCP for my colleagues here at the
Waikato Polytechnic.  In it I describe PCP and Repertory Test/Grid 
method and associated techniques... and .... provide the readers with 
exercises based on Vocational exploration, to enable them to gain 
familiarity with the techniques (as I use them) and also to 
demonstarte its power.
If you send me a postal address, I'll send copies of these to you.
In answer to one of your questions about the superiority of PCP 
techniques for this purpose.  My clients tell me that more 
traditional VG counselling tells them what they should do.  PCP style 
counselling tells them why they should do it; how it fits into their 
bigger picture (or master story).  It also tells them what to do 
about it too.  I have had a number of clients who have sat and stared 
at the finished product of the counselling mumbling to themselves 
"what a powerful tool... what a powerful tool..."
This evidence is anecdotal and I haven't done enough counselling to 
write anything up - but I hope this helps you. 
Dr. Robin Hill
____________________________________
Principal Lecturer & Research Leader
Department of Business Studies
The Waikato Polytechnic
Private Bag 3036
Hamilton 2020
New Zealand
email: BSRAH@twp.ac.nz
Fax. NZ (07) 834-8802
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