Frequency counts

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Joined: Tue Dec 23, 2014 1:39 pm

Frequency counts

Postby afp2001 » Tue Dec 23, 2014 1:48 pm

I have a dataset of about 15,000 questionnaires - I know that some people in the sample filled out a questionnaire more than once. The file includes national ID number - I want to see how many instances of repeat questionnaires I have, i.e. how many times the frequency of an individual's ID is >1. Is there some way to easily check this without manually going through the frequency table of 15,000 ID numbers?
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Re: Frequency counts

Postby GerineL » Mon Jan 05, 2015 12:46 pm

Look into the " identify duplicate cases" procedure in spss.

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