[Date Prev][Date Next][Thread Prev][Thread Next][Date index][Thread index]
st: how to check the reliability and validity of the data
Dear all:
I have a database with 72,878 observations which can be grouped into 2,800
average time of different activities. Therefore, there are 2,800 means and
2,800 S.D. for the activity time. How can I know the reliability and
validity of each activity time? Should I use nonparametric statistics or
chisquare test?
Thanks a lot for your help!
George Huang
*
* For searches and help try:
* http://www.stata.com/support/faqs/res/findit.html
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/