To convert the least value into zero you must detract 43 from all values. Then you should divide every value by 258, so the maximum is 1 and the minimum is zero. Finally, multiply everything by 100. Syntax: COMPUTE NEWSCALE = (OLDSCALE - 43) * (100/258).

Hector

-----Original Message----- From: SPSSX(r) Discussion [mailto:SPSSX-L@LISTSERV.UGA.EDU] On Behalf Of Mark Webb Sent: 25 August 2009 05:43 To: SPSSX-L@LISTSERV.UGA.EDU Subject: Converting scores to an index of 0-100

I have performance scores ranging from min of 43 to max of 258 - N=450. I want to convert these to an index where min [43] = 0 and max [258] = 100 and the scores in between will range from >0 to <100. Any pointers how I can do this in SPSS? Regards

-- Mark Webb

+27 21 786 4379 +27 72 199 1000 Skype - webbmark targetlinkmark@gmail.com

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