Comprehensive Attention Test as a Diagnostic Tool for Attention-Deficit/Hyperactivity Disorder.

Area of Science:

• Neuroscience
• Psychiatry
• Psychometrics

Background:

• Attention-deficit/hyperactivity disorder (ADHD) significantly impacts mental health across all ages, yet diagnosis remains complex.
• Computerized tools offer potential for objective ADHD assessment, but require validation for clinical use.

Purpose of the Study:

• To evaluate the diagnostic accuracy of the Comprehensive Attention Test (CAT) in identifying ADHD.
• To establish a foundation for clinical interpretation guidelines of the CAT.

Main Methods:

• Factor analysis of seven CAT subtests in 5214 individuals diagnosed with ADHD (aged 4-49) and 500 controls from South Korean psychiatric clinics.
• Comparison of CAT subtest scores between ADHD and non-ADHD groups across different age brackets.

Main Results:

• CAT subtests grouped into 3-4 factors based on age, effectively distinguishing ADHD from non-ADHD with high sensitivity and specificity (AUROCs ranging from 0.779 to 0.937).
• Factors identified included omission errors, commission errors, response time variability, mean response time, and working memory.
• Mean response time was less effective for ADHD diagnosis but indicated differences in the presence of psychiatric comorbidities.

Conclusions:

• CAT-derived factors reflect inattentiveness, disinhibition, and working memory, aiding ADHD diagnosis.
• The CAT shows promise for detecting psychiatric comorbidities alongside ADHD.