Empirisoft Support

    Welcome to Empirisoft Support
Results 1 to 6 of 6

Thread: Shooter Task (case 34960)

Hybrid View

Previous Post Previous Post   Next Post Next Post
  1. #1

    Shooter Task (case 34960)

    I tried searching the forum, but I couldn't find any info on Shooter Tasks in DRT. There are two issues that I can't seem to work out.

    One issue, which I am sure is not possible in DRT, is presenting a cumulative running total score after each trial. I know that DRT can't calculate a variable, and so keeping then presenting this tally is not possible.

    The second issue deals with the timing of the trials. The way the typical task works is that participants receive a -10 point penalty if they take longer than 850ms. Furthermore, depending on the trial type there are 4 possible types of feedback (correct shoot, correct no-shoot, incorrect shoot, incorrect no-shoot), and the points associated with each of these are presented to the participant after each trial. Doing either of these along is easy enough using the timing settings in the options file and the skip-to feedback in the csv.

    My issue is that the typical trial continues until a response, even if after 850 (to allow for analysis of error rates). What I want when people time out to only receive the max time feedback and not the skip to feedback. Is this possible?

    Also, is it possible to use a stim file for the max time feedback instead of just ugly text?

    Thanks!
    Last edited by jason_reed; 07-12-2019 at 05:18 PM.

  2. #2
    Join Date
    Feb 2013
    Posts
    1,089
    Hello,

    1) DirectRT cannot display any running totals.

    2) Have you tried any of the automatic continuation features to get DirectRT to display the desired feedback? You can find the information about the automatic continuation features here in the DirectRT manual:

    http://empirisoft.com/directrt/help/..._rt_limits.htm

    3) You could use the command word "full" automatic continuation feature to try to use the feedback from the MinMax field of the styles.drt file. Or you can control the formatting of the text in the .csv file with its own styles code as described here in the DirectRT manual:

    http://empirisoft.com/directrt/help/directrt_style.htm
    Jason Reed
    Empirisoft Software Support Specialist

  3. #3
    I tried using the -1 response time with a Jump (i.e., rt:44<995,53<998, -1<994) such that when the participant hits Z, they jump to feedback from trial 995, when they hit / they jump to feedback provided by 998, and when they time out, they jump to feedback provided by 994. But the -1 doesn't seem to utilize the jump feature, is this correct?

  4. #4
    Join Date
    Feb 2013
    Posts
    1,089
    The jump function needs an actual keypress to initiate the jump to a different trial. If there is something you want to show during the trial as a result of doing nothing, you can define -1 as a valid response for the stimulus with the jump functions and then put the rest of the things you want to show in the same trial as the -1 response.
    Jason Reed
    Empirisoft Software Support Specialist

  5. #5
    I follow your first sentence, but your second sentence confused me. Can you explain:

    "If there is something you want to show during the trial as a result of doing nothing, you can define -1 as a valid response for the stimulus with the jump functions and then put the rest of the things you want to show in the same trial as the -1 response."

    -1 is currently listed as an rt. Is that what you mean by define it as a valid response?

    Essentially I want to show things based on whether they hit Z, /, or time out. Jumping from Z and / is easy, but it seems like you're saying I can jump from a -1?

  6. #6
    Join Date
    Feb 2013
    Posts
    1,089
    I meant that you cannot use a -1 while trying to use the jump function. So in your example, pressing the Z or / is fine to initiate the jump function, but -1 will not initiate the jump function.
    Jason Reed
    Empirisoft Software Support Specialist

Similar Threads

  1. Second DRT task overwriting data from first DRT task
    By quinnk in forum MediaLab Older Versions: Troubleshooting
    Replies: 5
    Last Post: 02-25-2009, 05:35 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •