Problem with output files (case 8614)

[mariegood]

Hi there, I ran an experiment using a Go/No-Go Task, where I programmed 3 test blocks (40 trials each block). So each output file should have recorded 120 trials. But instead, each participant seems to have a different number of trials recorded in their respective output files. I have NO idea what might be going on here! I have attached the input file for the task, as well as a few participant's output files. Any suggestions/advice would be much appreciated! Thanks!

[jason_reed]

Hi mariegood!

Could you please tell me what version of DirectRT you are using (ver20xx.x.xx)? Also, do you get these same errors with some data not recording if you run the sample gnat that came with DirectRT? You can find the input files at \DirectRT\Samples\6 - v2006\gnat wherever you installed the DirectRT program files on your computer.

[mariegood]

In our lab we have 5 computers - 3 of them use version 20.12.4.155, one uses 20.12.4.160, and the other uses 20.12.4.157. When we run the sample gnat we didn't have the same problem. Thanks so much!!

[jason_reed]

It would seem like the problem lies in the input file you made. I looked at it and the 3 output files you attached and noticed that the missing data was for block 1 (trials 1-40). Can you try the following and let me know if the data record correctly?

1) Create and run a new input file without block 1 in it.
2) Create and run a new input file without the first break (row 28 in the original).

Can you also send me a zip file with all of your original stimlists and any stimulus materials? I'd like to try running your experiment on my computer to see if I can replicate this error.

[mariegood]

Thanks. I'm going to run the input files with your suggestions tomorrow at the lab and will let you know what happens ASAP. I've attached a file with all my stim, etc.

[mariegood]

Hi again,
I ran the GNG files making the changes you suggested.
(1) When I deleted block 1, everything appeared to record properly in the output files.
(2) When I deleted the first break (line 28), everything also recorded properly.
Thanks,
Marie