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enhancing the procedure for estimating alpha Reliability
I just sent an article ms. related to reliability estimation. One of the main (accidental) results is that the procedure used in SPSS (listwise omitting) is misleading and VERY unstable against the missing values. When using the listwise selection...
For many regression procedures with dependent data, you want to resample whole blocks of data together. This currently cannot be accomplished via stratified sampling, which samples one case per strata.
Add column proportions z-test for post-hoc testing in the Complex survey module
I would like to request for a future SPSS release to include column proportions z-test for post-hoc testing in the Complex survey module. Surveys are an often used resource to collect informative data from a large number of people. However, analys...
Setting to not offer public tables when importing data from a database
This issue is also described here:
This might only concern Oracle databases, but possibly others as well.
In SPSS one can import data from...
The Database export assistant should accecpt the length for all oracle data formats which allow a length.
We have a lot of Oracle-Tables with columns in raw format. It should be possible to write back such informations with the database export assistent. But it isn't, because he doesn't accept a lengt for the raw format, which is required from oracle....
Save partition variable in Neural Networks procedures
Problem: In some procedures (like Nearest Neighbor analysis) if cases are randomly assigned to the training and holdout samples on the Partitions tab, they can be saved as a new variable with the values of the partition (training or holdout) to wh...
In CTABLES, I’d like to do data-dependent-sorting based on something other than the total count. For example, in the CTABLES syntax below, I have MemberType along the left side (10 categories) and AnnualMeeting along the top (two categories: Yes o...
Add Geometric Standard Deviation to go with Geometric Mean
The Geometric Standard Deviation (GSD) is the most interpretable measure of dispersion about the Geometric Mean. Together these statistics can summarise variables (e.g. concentrations) that have a LogNormal distribution. Currently, the variable ha...
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