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Template: Up / Down Method
#1
Up / Down Method

Required Experiment Builder Version: 1.2.18 or higher
EyeLink Required: No
Type: Concept Example
Difficulty Level: Medium

This example illustrates:
  • How to use Conditional node and Update Attribute node to check performance and modify staircase
  • How to use Sound nodes to play different audio feedback based on trial performance
  • How to use Result File node to save trial performance
Description:

This example illustrates the implementation of up / down method in Experiment Builder. This method is used to find out a threshold at which the participant cannot make a reliable response to the prime direction with an arrow / neutral mask. You may need to adjust the refresh rate (default is 60 Hz).

**Additional detailed information about the project is given in the notes section for most nodes. To see notes for a given node, either mouse over that node or click on it to display the notes window. If the notes window is not visible, go to the "View" drop down menu in Experiment Builder, select "Properties", and check "Note".

Instructions:
  1. Download the Updown_method.ebz example from this message.
  2. Launch the Experiment Builder application.
  3. Unpack the Updown_method.ebz file to a location on your Experiment Builder PC with "File menu -> Unpack".
  4. Open the project in Experiment Builder.
  5. Deploy the project to a new folder.
  6. Run the Updown_method.exe from the deployed directory.


.ebz   Updown_method.ebz (Size: 78.07 KB / Downloads: 38)