PennController for IBEX › Forums › Support › Partial randomization of trial sequence › Reply To: Partial randomization of trial sequence
April 27, 2020 at 4:38 pm
#5140

Participant
Hi,
I’ve added a .js file named as “PartialRandom.js” to controllers folder, and also modified the Sequence command to:
Sequence("intro", subsequence( repeat(randomize("a_trials"),2) ,randomize("b_trials") ), "exit")
The “a_trials” and “b_trials” are implemented using Templates separately.
However, when I test the experiment, an error message will pop up: You must define the ‘items’ variable.
Is it because I need to refer to the .js file that I’ve added to the controller fold somewhere in my code?