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Table 3 The three-factor model of Confirmatory Factor Analysis of the ADHD DSM-V Checklist

From: Psychometric analysis of the new ADHD DSM-V derived symptoms

Component Newly DSM-V symptoms Hyperactivity- Impulsivity
Inattentiveness added items  
ADHD- item 1- makes careless mistakes .49
ADHD- item 2- sustaining attention .71
ADHD- item 3- listening when spoken to .52
ADHD- item 4- follows instructions .72
ADHD- Item 5- organizing tasks .82
ADHD-Item 6 - sustained mental effort .67
ADHD- item 7- loses things .57
ADHD- item 8- distracted by extraneous stimuli .63
ADHD- item 9- forgetful in daily activities .56
ADHD- item10- fidgets with hands .65
ADHD- item11- leaves seat in classroom .74
ADHD- item 12- runs about .73
ADHD- item 13- playing or leisure activities .86
ADHD- item 14- often "on the go" .83
ADHD- item 15- talks excessively .78
ADHD- item 16- blurts out answers .71
ADHD- item 17- awaiting turn .78
ADHD- item 18- interrupts or intrudes on others .74
ADHD- item 19- act without thinking .63
ADHD- item 20- impatient .80
ADHD- item 21- uncomfortable doing things slowly and systematically .78
ADHD- item 22- difficult to resist temptations or opportunities .66
  1. Chi-square = 31.84, df = 206, P valu < 0.0001, Root Mean Square Error of Approximation (RMSEA) = 0.077, Non-normed Fit index (NNFI) = 0.99, Comparative Fit index = 0.99.