Hi Dave,
Thank you for your quick reply. If I somehow identify a better file path, is the data, as generated by Inquisit, in the correct format for spss and the Inquisit syntax file, or does it need to be adjusted or manipulated in some way first? In other words, have people using previous versions of SPSS been able to just rename the Inquisit data file and run the syntax?
Thanks,
Kathryn
SPSS's requirement for full file paths has nothing to do with the data file format. SPSS will read the data file as output by Inquisit just fine, no additional preprocessing or format changes are needed.
Thanks, Dave. I changed the file path and successfully got the data into SPSS.
Hello,
I'm trying to determine whether to exclude several slow responders from my data set (who have some responses >10,000 ms). How is the aveltncy variable calculated? Does it take into account the latencies on all trials, including practice? When I run means on the cases the numbers aren't the same as the value for this variable.
Thanks very much.
Just look at the SPSS syntax:
* Use data for Blocks 3,5,7, and 9 (i.e., TEST = 1 or 2) .SELECT IF (TEST=1 OR TEST=2) .
[...]
* Record criteria for potential use in subject discards .* This count can later be used as the basis for subject discard .AGGREGATE OUTFILE = 'CRITERIA.SAV' / BREAK = SUBJECT ORDER / PCT_300 = PGT(FLAG_300,0) / PCT_400 = PGT(FLAG_400,0) / PCT_10K = PGT(FLAG_10K,0) / AVELTNCY ERRORPCT = MEAN (LATENCY ERROR) / NTRIALS = N .* Drop trials slower than 10000 ms for LATENCY .SELECT IF (LATENCY LE 10000) .
* AVELTNCY = overall average latency .* [Note that 'aveltncy' was computed _BEFORE_ discard of latencies above 10000 ms] .
Regards,
~Dave