Conners’ Continuous Performance Test II (CPT II)


The Conners’ Continuous Performance Test II evaluates attention problems and treatment usefulness. 


This is a commonly used instrument by ADHD research and clinical assessments for participants aged 6 or older.


The test is taken at a computer. 


The participant presses the space bar or clicks the mouse button when a letter other than X shows up onscreen. 

Letters appear on the screen with different time intervals between each one.

Exactly 14 minutes is required for completion.


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