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Descriptive Statistics - Median

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Chris W

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May 16, 2008, 12:15:29 PM5/16/08
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Hi,

I would like to find the median scores for a conditionalized data
set. I have separated the conditions by embedding conditional
information into the subject number (e.g., 101.c.r1 = subject 101,
congruent item, round 1). My intention was to split the file based on
the subject number and then ask for descriptive statistics including
the median. When I visit the descriptives menu, however, there is no
median option. My question is, how does one go about computing the
median for each subject in each condition using the current
configuration?

Thanks,
Chris

Art Kendall

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May 16, 2008, 2:18:44 PM5/16/08
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It sounds like your data is in a long format i.e., there are multiple
lines/cases/records per subject. If the variable does not exist that
you were going to split the file on, Create a new variable with just the
101 part. Sort by subject. Then use AGGREGATE with subject as the BREAK
variable.

Art Kendall
Social Research Consultants

JKPeck

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May 16, 2008, 7:50:38 PM5/16/08
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Create you split variable and use the Means procedure. It offers lots
of statistics. For example

MEANS TABLES=salary BY jobcat
/CELLS MEAN COUNT STDDEV MEDIAN.

HTH,
Jon Peck

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