I checked it by using a published data set and three different
statistical programs including PSPP. I could not find any significant
differences between the results. PSPP's Mann Whitney U test procedure
seems to be working properly.
Kind regards,
Oliver Walter
Am 04.03.2017 um 19:51 schrieb Dr. Walter Statistics:
Dear Prof. Nuszbaum,
your question would be easier to answer if you described it in more
detail, e.g. by posting your outputs and / or your data sets (if the
sample sizes are small, we could compare the results).
Kind regards
Oliver Walter
---
Dr. Walter Statistics
Gabelsberger Straße 27
24148 Kiel
Am 04.03.2017 um 19:20 schrieb Mandy Nuszbaum:
Dear all,
I computed Mann-Whitney-U using PSPP and SPSS and compared the
results using different data sets. Results are completely different
and led to wrong conclusions.
Can anyone fix the problem?
Kind regards,
mn
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