I am trying to install the fuzzy and psm extension or its update to spss 25 and I keep getting a failure notice.

The usual reason for an installation failure with older versions of Statistics is not having permission to write the extension files to the location for extensions. So, first check where V25 wants to put those files by running the SHOW EXT command from a syntax window. If these are under \Program Files (assuming this is Windows), starting Statistics via Run As Administrator will probably allow this.

Beyond that, you can create two environment variables, SPSS_CDIALOGS_PATH and

SPSS_EXTENSIONS_PATH specifying locations where you can save files. On Windows you do this from the Windows Control Panel. Exact details depend on the Windows version.

Then restarting Statistics and trying the install should work.

V28 has finally pretty much eliminated these problems.

Jon, thank you for your help. I managed to get it to update however I have no idea where it is since the path location it gave me shows an empty file and I do not see the extension in spss V25. And you are correct, V28 has solved this but I have spss through my university and they just have V25.

I am replying to my reply. I managed to find where the Propensity Score matching was installed. All I had to do was restart SPSS not in administrator mode and look again at the location of the extension under the extension tab.

These should be under the Data menu.

Yes, I found it. I am a little confused though because according to tutorials online there should be PS-matching as well in the analyze menu which there isn't. I think that confused me.

PS Matching is a different extension not from IBM and not on the Extension Hub. If you want that one, you can get it from here.

https://1drv.ms/u/s!AoWcE61g_FAdisRgpypJUmAMxWWYYA?e=dNygXi

The authors of that one put it on the Analyze menu.

It says it works with Statistics V19 and later. It requires the appropriate version of R and the R Essentials for V25.

Thank you for the link. I will check it out.