Statistical Procedures

Programming the statistical procedures from SAS
BookmarkSubscribeRSS Feed
bollibompa
Quartz | Level 8

Hi,

I have a dataset with some missing information and have performed av PROC MI generating 5 datasets and further estimated p-score for these. Are there any way of pooling/avaraging the p-score from these 5 datasets and match to a control using the avaraged p-score? Any procedure in SAS that could handle this?

Thanks

/Thomas

2 REPLIES 2
Rick_SAS
SAS Super FREQ

An average p-value doesn't make sense. The p-values give information about whether the data support the null hypothesis.  For each set of data, you run an analysis, generate parameters, and you get p-values, but those p-values are conditional on the data.

You could report the distribution of the p-values or you could make a statement like "for each of the imputed data sets, the p-value for XYZ was significant."

SteveDenham
Jade | Level 19

Multiple imputation almost always involves two steps--first imputing the missing values (PROC MI) and then combining the results in a meaningful way (PROC MIANALYZE).  I suspect that if you look through the documentation for PROC MIANALYZE, especially the examples, you will find precisely what you are looking for.

Steve Denham

sas-innovate-white.png

Join us for our biggest event of the year!

Four days of inspiring keynotes, product reveals, hands-on learning opportunities, deep-dive demos, and peer-led breakouts. Don't miss out, May 6-9, in Orlando, Florida.

 

View the full agenda.

Register now!

What is ANOVA?

ANOVA, or Analysis Of Variance, is used to compare the averages or means of two or more populations to better understand how they differ. Watch this tutorial for more.

Find more tutorials on the SAS Users YouTube channel.

Discussion stats
  • 2 replies
  • 2036 views
  • 0 likes
  • 3 in conversation