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(Click here to access the previous version of the tutorial)

(We did a Webinar for the LSA that walks through the main parts of this tutorial [June 14, 2019 version]; You can watch a video of it here)

In this tutorial, we will learn to implement a simple experiment design using PennController for IBEX.
Click here to see the project that we want to reproduce.
While this currently serves primarily as a toy example, there’s an empirical question of theoretical interest underlying it, namely: What is the time course of interpreting the agreement morphology in English, in particular  the presence or absence of an -s on a verb?

A good exercise when you start designing an experiment is to try to schematize the general flow of events.
In this case, we’re aiming for the following components:

  1. A welcome screen with
    (i) some introductory text,
    (ii) a text input box to record a participant ID, and
    (iii) a button to start the experiment
  2. A series of trials all following the same pattern:
    1. A screen that’s initially blank for a brief period of time
    2. Two pictures appearing side by side
    3. A Brief pause
    4. A sentence unfolds both visually as text and auditorily from a sound file
    5. Wait until one of the two pictures is selected (by either click or button press) and the audio is done playing
    6. End of trial
  3. A final screen with a confirmation link

This is what we will have at the end of this tutorial, but as a first step, we will start with something much more basic: a simple task on a single display screen showing one sentence and two pictures asking for a key press.


Next: Getting started