Introduction to E-Prime Introduction to E-Prime for demonstrators/PG for demonstrators/PG

DipsDips

Jonathan StirkJonathan Stirk

Welcome to E-PrimeWelcome to E-Prime E-Prime refers to the Experimenter’s E-Prime refers to the Experimenter’s

Prime (best) development studio for the Prime (best) development studio for the creation of computerized behavioral creation of computerized behavioral research.research.

E-Prime is a software suite of applications E-Prime is a software suite of applications that take you through the creation of your that take you through the creation of your experiment to performing descriptive experiment to performing descriptive statistics on your collected data.statistics on your collected data.

E-PrimeE-Prime

This is a diagram of This is a diagram of E-Prime’s core E-Prime’s core system system components.components.

E-StudioGraphical Design

Environment

E-BasicFull Scripting

Language

E-RunReal-Time Experiment Generator

E-MergeData Merging

Utility

E-DataAidSpreadsheet

Application for E-Prime Data Files

The E-Studio The E-Studio interface has four interface has four major components:major components:

1.Toolbox1.Toolbox

2. Structure View2. Structure View

3. Properties 3. Properties WindowWindow

4. Workspace 4. Workspace

Let’s look at some Let’s look at some components...components...

1 2

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E-Studio - InterfaceE-Studio - Interface

The Toolbox The Toolbox contains objects contains objects that are dragged to that are dragged to procedural procedural timelines. These timelines. These objects are the objects are the basic building basic building blocks of your blocks of your E-Studio E-Studio experiments.experiments.

Let’s look at some Let’s look at some of these objects...of these objects...

1

The TextDisplay The TextDisplay allows you to allows you to specify text, such specify text, such as instructions, as instructions, that the subject will that the subject will see during the see during the experiment.experiment.

Similarly, the Similarly, the BitmapDisplay BitmapDisplay allows you to allows you to specify images that specify images that the subject will see the subject will see during the during the experiment.experiment.

The List object The List object allows you to allows you to define the blocks, define the blocks, trials, sub-trials, trials, sub-trials, etc. in your etc. in your experiment. experiment.

Procedure objects Procedure objects represent the represent the timelines in your timelines in your experiment.experiment.

These procedural These procedural timelines tell the timelines tell the experiment what experiment what objects occur at objects occur at what point.what point.

The FeedbackDisplay The FeedbackDisplay allows you to specify allows you to specify the feedback that your the feedback that your subject will receive after subject will receive after a response.a response.

These are just some of These are just some of the objects available to the objects available to you in E-Studio.you in E-Studio.

The Structure View The Structure View is an outline or is an outline or hierarchical hierarchical representation of representation of your experiment.your experiment.

This window This window features a tree features a tree view similar to that view similar to that in Windows in Windows Explorer. Explorer.

2

The Properties The Properties Window lists the Window lists the properties for properties for selected objects selected objects and displays their and displays their current settings.current settings.

3

The Workspace The Workspace contains the contains the window window representations of representations of your experiment your experiment objects.objects.

An object is An object is opened in the opened in the Workspace by Workspace by double clicking the double clicking the object on a object on a procedural timeline procedural timeline or in the Structure or in the Structure View.View.

4

Lets’ build an experimentLets’ build an experiment

The experiment will involve The experiment will involve presenting a series of pictures and presenting a series of pictures and words. Each stimulus will be words. Each stimulus will be preceded by a fixation cross. When preceded by a fixation cross. When the stimulus appears participants the stimulus appears participants must press Z if it is an animal, and M must press Z if it is an animal, and M if it is furniture. (categorization task)if it is furniture. (categorization task)

Follow through the tutorial!Follow through the tutorial!

I am going to go through the I am going to go through the documented tutorial with you.documented tutorial with you.

Carry out the steps in the same way Carry out the steps in the same way as I show and ask any questions as as I show and ask any questions as we go throughwe go through