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Hello. The experiment I am building will choose random stimuli (%picture) and require participants to respond. In order to determine if their response is correct or not, it'll be essential to know what stimulus was presented. How can I get this to show in the output file?
Thanks.
Check the log version of the data file rather than the standard short data file. You'll find it in a data subfolder called, you guessed it.. "log". Let me know if that doesn't get you what you need. See also the data section in the user's guide or online here:
[URL="http://www.empirisoft.com/directrt/help/directrt_overview_of_data_output.htm"]www.empirisoft.com/directrt/help/directrt_overview_of_data_output.htm[/URL]
Nope. I've looked in the log file - it does not have the data I need. I need to see what stimuli were shown PRIOR to the trials that ask for a response. I tried setting values at -1 (as suggested in a different thread) in order to see what stimuli were shown on preceding trials, to no avail. What am I doing wrong?
Thanks for the help.
Problem solved. I was putting the -1 in a values column, instead of in the BLOCK column.
That solved all the problems. :)
Ahh, that'll do it. Thanks for the update, glad to hear it worked out. Note to other users--entering a [I]negative value[/I] in the [I]Block[/I] column (e.g., -1) ensures that data are written for trials that do not collect any RTs--such as "display only" trials.