Download Precision Power A200.2 User`s guide

E-Prime User’s Guide
Chapter 2: Using E-Studio
The script above examines the value of Feedback.ACCStats.Mean (calculated automatically by
the Feedback object) to determine if the subject achieved 80% accuracy. If this value is greater
than 80%, the practice trials terminate and the experiment continues with the real trials (i.e., the
next object in the SessionProc is the BlockList). If the subject did not achieve 80% accuracy for
the practice trials, the practice trials are repeated using the Goto command to jump to Label1.
Using this method, the practice trials will continue until the Criterion for continuation is met. The
Feedback.ACCStats.Reset command is used to reset the Feedback accuracy statistics to zero
before rerunning the block. The InLine is also setting the text to display using an object called
EndPrac. In the next few steps, both the Label1 and EndPrac objects will be created.
2.7.3.2
Place Label1 prior to the PracticeBlockList
Click and drag the Label object icon to create a Label on the SessionProc just prior to the
PracBlockList. Label 1 will mark the location in the SessionProc to which the Goto command
refers. If the required accuracy level is not achieved during the practice trials, the execution of
the experiment will jump back to Label1 and rerun the PracticeBlockList.
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