title: Validity of pilot Adult ADHD Self- Report Scale (ASRS) to Rate Adult ADHD symptoms.
abstract: BACKGROUND
  The goal of this study was to validate the pilot Adult ADHD Self-Report Scale (pilot ASRS) versus standard clinician ratings on the ADHD Rating Scale (ADHD RS).
  
  
  METHODS
  Sixty adult ADHD patients took the self-administered ADHD RS and then raters administered the standard ADHD RS. Internal consistency of symptom scores was assessed by Cronbach's alpha. Agreement of raters was established by intra-class correlation coefficients (ICCs) between scales.
  
  
  RESULTS
  Internal consistency was high for both patient and rater-administered versions (Cronbach's alpha 0.88, 0.89, respectively). The ICC between scales for total scores was also high (0.84); ICCs for subset symptom scores were also high (both 0.83). There was acceptable agreement for individual items (% agreement: 43%-72%) and significant kappa coefficients for all items (p < 0.001).
  
  
  CONCLUSIONS
  The pilot Adult ADHD Self-Report Scale symptom checklist is a reliable and valid scale for evaluating ADHD for adults and shows a high internal consistency and high concurrent validity with the rater-administered ADHD RS.
authors.affiliation: Department of Psychiatry and Neurology, Adult ADHD Program, NYU School of Medicine, New York, NY 10016, USA. lenard.adler@med.nyu.edu
authors.forename: Lenard A
authors.initials: LA
authors.lastname: Adler
authors.forename: Thomas
authors.initials: T
authors.lastname: Spencer
authors.forename: Stephen V
authors.initials: SV
authors.lastname: Faraone
authors.forename: Ronald C
authors.initials: RC
authors.lastname: Kessler
authors.forename: Mary J
authors.initials: MJ
authors.lastname: Howes
authors.forename: Joseph
authors.initials: J
authors.lastname: Biederman
authors.forename: Kristina
authors.initials: K
authors.lastname: Secnik
mesh_terms: D000328:Adult; D001289:Attention Deficit Disorder with Hyperactivity / Q000175:diagnosis* / Q000523:psychology; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D015588:Observer Variation; D010552:Personality Assessment / Q000706:statistics & numerical data; D010555:Personality Inventory / Q000706:statistics & numerical data*; D010865:Pilot Projects; D011594:Psychometrics / Q000706:statistics & numerical data; D015203:Reproducibility of Results; D011795:Surveys and Questionnaires