duration for timed items (optional)
The default for many item types (instructions, essays, word documents, fill-in-the-blank, thought and recall lists, image files) is for the subject to press a key to continue. Optionally, you can set a duration for these items instead. For example, if you wanted an instruction or an image to be displayed for 30 seconds and then automatically continue, you would specify
(d30). You can also limit the time a subject has to complete a given questionnaire using the
d parameter.