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Table 5 Principal component analysis including the DSM-IV derived inattentiveness symptoms and the four new symptoms proposed in DSM-V

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

Inattentiveness symptom of DSM-IV and new proposed symptoms in DSM-V
  Component
  1 2
ADHD- item 1- makes careless mistakes .676 -.045
ADHD- item 2- sustaining attention .780 .079
ADHD- item 3- listening when spoken to .486 .122
ADHD- item 4- follows instructions .551 .322
ADHD- Item 5- organizing tasks .686 .386
ADHD-Item 6 - sustained mental effort .667 .192
ADHD- item 7- loses things .414 .341
ADHD- item 8- distracted by extraneous stimuli .450 .367
ADHD- item 9- forgetful in daily activities .579 .057
ADHD- item 19- act without thinking .275 .565
ADHD- item 20- impatient .069 .785
ADHD- item 21- uncomfortable doing things slowly and systematically .136 .793
ADHD- item 22- difficult to resist temptations or opportunities .058 .750
  1. Extraction Method: Principal Component Analysis. Rotation Method: Varimax with Kaiser Normalization.