User`s guide

E-Prime User’s Guide
Chapter 2: Using E-Studio
Page 49
The results of this modification are displayed in the Structure view below. Since the DesignList
refers to the [TrialProcName] attribute as the value in the Procedure column, the Structure view
shows a “?” as the procedure called by the DesignList, and the MaskTrialProc and PrimeTrialProc
reside in the Unreferenced E-Objects folder. At run-time, the value for the TrialProcName
attribute is resolved, and the appropriate Procedure is executed.
Notice that MaskTrialProc includes an additional object to present the Mask. To complete the
MaskTrialProc as in the view above, drag a TextDisplay object to the MaskTrialProc following the
Prime. Rename the new TextDisplay to “Mask”, set the Mask Duration property to 50ms, and the
Height property to 25% (i.e., to match the display area settings for the Prime display).
2.7 Stage 5: Add Practice Block
Note: This section builds on the experiment created during the previous section. A finished version of Stage4-
LexicalDecision001.es is located in the C:\My Experiments\Tutorials\Using E-Studio Stages directory.
The goal of stage 5 is to add a block of practice trials prior to the experimental trials. The practice
block will be run repeatedly until the desired block accuracy of 80% is obtained. This involves