Having a "stop" rule. Terminate on 4 incorrect answers or move on after 4
 
 
 
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Having a "stop" rule. Terminate on 4... Expand / Collapse
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Posted 5/12/2008 12:10:36 PM
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Last Login: 10/28/2008 10:35:06 AM
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Hello, as the subject line says I need my experiment to have a "stop or move on rule".

In each TrialList there will be 6 questions (ie the subject has to identify which is the highest number from 3 numbers presented on screen and click the relevant number). If the participant gets this incorrect 4 times the experiment should terminate, if they get 4 correct they can move on to the next TrialList. If the get one or 2 wrong it should run through all the 6 questions.

I've modified the response areas for mouse expt in the thread http://www.pstnet.com/forum/Topic1149-5-1.aspx

I am absolutely clueless with scripts so would really appreciate any help.
Post #1550
Posted 8/5/2008 11:12:52 AM
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Hello,

The reason I joined the forum today corresponds excatly to the problem you talked about.

I also have to develop a program in which subjects would have access to next levels if they correctly respond to (at least) 2 out of 3 items of a list and, if it was not the case, the experiment should stop.

I didn't found any response to my problem... What about you ?

Thanks for your time !

Post #1915
Posted 8/5/2008 4:07:52 PM
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By using a global variable similar to the sample link below, you can keep track of when the the criteria you want has occurred and using InLine script take action on how to end the Procedure.  Calling List.Terminate will stop any further selection of the trials.  Enumerating through all of the Lists in the experiment calling .Terminate on them and/or use of Labels and GoTo can assist with exiting out of the total run of the experiment.

Sample: Criterion Based Exit

Post #1918
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