Anyone know the best way to open a ".spv" file? The data for this paper is "free" as long as you have SPSS apparently. I was able to get the .sav file opened, but many of the column names mean nothing to me.
https://osf.io/xpmd2/
> How does one view IBM SPSS Statistics output if s/he does not have Statistics, or has an earlier version than that which produced the output?
> Answer
> For output produced by versions of SPSS/Statistics 16.0 and later (i.e., *.spv files), the free IBM SPSS Smartreader is available for Windows, Mac, and Linux from the SPSS Community (www.ibm.com/developerworks/spssdevcentral). Look for the Download materials for IBM SPSS Statistics.
Anyway, I figured it out by comparing the means of the columns to the tables in the paper[1]. I was wondering about the claim that "the magnitude of an individual’s Pe correlates positively with omission errors", since they do not show this plot.
You can see it by plotting "pe.diff.meanpz.cpz" vs "percent.omission.errors" from the data.sav file at the OSF link (I used the R "memisc" package). There is a correlation, but just slightly (eg the subjects with the highest error had middling Pe).
Also, the error rates correspond to the control group not clicking (on average) when they saw an F instead of an E 1-2 times out of 60 vs 3-4 times for the acetaminophen group.
They say "the effect of acetaminophen on errors of omission, while robust, was unanticipated". So this was the result of exploratory analysis. Personally I wouldn't put much stock into the idea that acetaminophen "hinders the brains error correction mechanism" based on these results.
