A smartphone adaptation of code substitution that measures processing speed and visual matching.
Configure parameters and run an interactive preview exactly as participants will experience it. No data is recorded.
Adjust parameters below, then start the preview on the right.
Include practice trials
Shown with feedback before the main task
Task parameters
The symbol-digit key changes between runs to reduce memorization effects.
This is a researcher preview. No participant data is recorded.
Simulated participant view
A smartphone adaptation of code substitution that measures processing speed and visual matching.
No data is recorded
A symbol key at the top, one symbol prompt in the center, and a number keypad below.
Useful when a study needs a stronger processing-speed task than simple reaction time.
Less suitable for very high-frequency sampling if participant burden must be minimal.
Use one-at-a-time presentation with a visible key and a short timed run.
Performance may improve with practice, so alternate forms and repeated designs should be planned carefully.