User`s guide

E-Prime User’s Guide
Chapter 2: Using E-Studio
Page 35
2.5.1.2 Method B – Use of Nested Lists
Note: A finished version of Stage3-MethodB-LexicalDecision001.es is located in the C:\My Experiments\Tutorials\Using
E-Studio Stages directory.
Nested lists provide a method to organize a list of items (e.g., words and non-words) and
reference that organized list in the List object used to run the Procedure. This experiment might
have lists of words and non-words from which stimuli are sampled. Then there would be only two
rows in the DesignList object, each selecting words from a different list of words. One benefit to
this method is the ability to set the selection method for each of the List objects independently.
To use nested Lists, list the main conditions (ProbeType x PrimeType) on the DesignList, and
create two separate List objects to organize the stimuli into Words and NonWords. In the Nested
column, refer to the WordList for trials in which the ProbeType is a Word, and to the NonWordList
for trials in which the ProbeType is a NonWord.
This specification has the following effect. On each trial, a row is selected from the DesignList.
For illustration, assume the first row (ID = 1) is selected. The Nested column indicates that
WordList is a nested List, and the experiment goes to this List to make a selection. The method