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PSYCHEXP
TUTORIAL

Build an IAT in 30 seconds (Implicit Association Test) Fully Customizable
Build an IAT in 30 seconds (Implicit Association Test) step 1

STEP 1

In this tutorial we will be adding an Implicit Association Test to a Psychexp project.

Let us begin by firstly logging in to psychexp and then select "Add New Project" from the menu.

Enter a project name and click submit. (We will call our project "PROJECT 1")

STEP 2

You will be returned to the dashboard, so then find the project you just created in the project list and click "Open".

Build an IAT in 30 seconds (Implicit Association Test) step 2
Build an IAT in 30 seconds (Implicit Association Test) step 3

STEP 3

You are now on the project home page, so click on the "Edit Project" button from the side menu.

STEP 4

When you first create a project in Psychexp a block with one single choice question is inserted by default.

We are going to add the Implicit Association Test below this default block by simply clicking the "ADD EXPERIMENT" button and selecting "IAT" (Implicit Association Test) from the list that is displayed.

Build an IAT in 30 seconds (Implicit Association Test) step 4
Build an IAT in 30 seconds (Implicit Association Test) step 5

STEP 5

A fully functional Implicit Association Test has now been inserted.

Let's take a look at the structure of the default experiment, and then see how you can customize it to make it your own.

The entire experiment is housed inside of a single block named "Default Block". You can change the name of the block by clicking on the edit (pencil) icon next to the block name.

Next you will see a text only information page that is shown to the participant before the experiment begins. This page is fully customizable by clicking the edit (pencil) icon. You can also add extra pages by clicking the "Add Text Only Page" Button.

Following the information page there are 2 Target categories (old, young) and 2 Attribute categories (good, bad). You can change these categories by clicking the edit (pencil) icon next to the category name.

The default experiment has 6 stimulus in each category, and you can either change these stimulus by clicking the edit (pencil) icon or you can add more stimulus (text or image) to a category by clicking the "Add Stimulus" button in each category.

After you have made changes to the default experiment, you can see a live preview of the experiment by clicking the "Preview" button at the bottom of the page. You can preview the project as many times as you want. The preview screens are identical to the screens your participants will see when you distribute your project, however the data from a preview is not saved in the dataset.

STEP 6

By clicking on the experiment block settings (cog) icon, you can make changes to the following settings of the experiment;

  • Left and right keyboard input key (Not applicable for tablet or smartphone participants)
  • Image Stimulus height
  • Text stimulus font size
  • Text stimulus font color
  • Experiment background color
  • Interstimulus interval (ms)
  • Randomized combination
  • Display result page to participant

NOTE: Selecting "Randomized Combination" forces the block order counterbalance to be decided randomly for each participant. If "Randomized Combination" is not selected the block order counterbalance is distributed alternately.

Build an IAT in 30 seconds (Implicit Association Test) step 6
Build an IAT in 30 seconds (Implicit Association Test) step 7

STEP 7

Once you are happy with the design of your experiment you can then adjust the flow of your entire project by editing or deleting the default survey question block that was inserted when you initially made the project. You can also add more survey question blocks or even other experiment blocks under your current experiment by simply clicking on the "ADD BLOCK" or "ADD EXPERIMENT" buttons at the bottom of the page. The combination of experiments and survey questions that you can achieve is only limited by your own imagination!

PRO TIP: Changing the order of the flow of survey question blocks and experiment blocks in your project is as easy as using the up and down arrow buttons that can be found at the top of each survey question or experiment block.

Before distributing your project to your participants be sure to adjust the project settings by clicking on "Project Settings" in the menu.

These are just a few of the many settings you can adjust:

  • Single or multiple time project participation
  • Require email registration
  • Set start and finish dates for participation
  • Record geolocation
  • Registration page logo

STEP 8

When you are ready to distribute your project to your participants, click on "QR code" in the menu to get the URL link or QR code for this project.

PRO TIP: Once a participant has responded to your survey or experiment, you are no longer able to make changes to the project in the "Edit Project" screen. Use the project "PREVIEW" button extensively to check your project prior to distributing it to any participants.

To view the data collected from your participants, click on "Dataset" in the menu.

The dataset will be downloaded in excel format.

Build an IAT in 30 seconds (Implicit Association Test) step 8

For a more detailed explanation and a preview of the default experiment, check out the video tutorial.

Psychexp Video Tutorial: Build an IAT in 30 seconds (Implicit Association Test)
The default procedure for the IAT (implicit association task) refers to the following paper. However, partial changes have been made to the experimental procedures and stimulus words: Greenwald, A. G., McGhee, D. E., & Schwartz, J. K. L. (1998). Measuring individual differences in implicit cognition: The Implicit Association Test. Journal of Personality and Social Psychology, 74, 1464-1480. / For the scoring algorithm, please see: Greenwald, A. G., Nosek, B. A., & Banaji, M. R. (2003). Understanding and Using the Implicit Association Test: I. An Improved Scoring Algorithm. Journal of Personality and Social Psychology, 85, 197-216. / Image stimuli are from Project Implicit's Race IAT (Retrieved from osf.io/y9hiq).
The default procedure for the IAT-SC (single category implicit association task) refers to the following paper. However, partial changes have been made to the experimental procedures and stimulus words: Karpinski, A., & Steinman, R. B. (2006). The Single Category Implicit Association Test as a measure of implicit social cognition. Journal of Personality and Social Psychology, 91(1), 16–32.