User`s guide

E-Prime User’s Guide
Appendix C: Sample Experiments
Page A-48
The setting for the End Action field determines the action to be taken upon input from the subject.
The Jump option indicates that the program execution will jump to the Label object named
DoFeedback in the current Procedure (see Structure view above) when input is received,
skipping the other objects in the procedure if they have not yet been run (e.g., Mask).
Change the stimulus
The value of the Stim1 and Stim2 Attributes may be changed by modifying the Nested List
objects (WordList, NonWordList).
Add a stimulus
To add a stimulus presentation to the Procedure, double-click the TrialProc object to open it in the
Workspace. Click and drag a TextDisplay object (or other appropriate display object) to the
Procedure, and place the new object where the additional stimulus is to appear in the timeline of
events. Set the properties for the new object.
Vary the Mask
To vary the mask presented on each trial (e.g., vary the number of asterisks based on word
length), enter an attribute on the TrialList to hold the value of the mask. Then, on the Mask
object, reference this new attribute (e.g., [Mask]) in the Text field, rather than the current mask
(“*********”). Alternatively, the Mask attribute may be entered as an attribute on the nested List
objects.
Basic Reaction Time: Slide
The SlideRT experiment illustrates a simple reaction time experiment, presenting a fixation and a
stimulus, and collecting a response to the stimulus. The stimulus display consists of an arrow
and an asterisk, and the task is to determine whether or not the arrow direction corresponds to
the asterisk position. The SlideRT experiment illustrates the use of the List object, the Slide
object, the Procedure object, and the FeedbackDisplay object. The SlideRT experiment also
illustrates the use of the SlideImage and SlideText sub-objects on the Slide, as well as how to
use SlideState objects.