title: Development and validation of a web-based screening tool for monitoring cognitive status.
abstract: OBJECTIVE
  We acquired normative data for an Internet neurocognitive screening tool, the Cognitive Stability Index (CSI), and investigated its validity both for initial assessment and for detecting significant change.
  
  
  METHODS
  Normative data on a nationally representative sample of 284 individuals aged 18 to 89. Validity data was obtained for outpatient groups of mild-to-moderate TBI, attention deficit/hyperactivity disorder (AD/HD), and Alzheimer's disease.
  
  
  RESULTS
  The CSI subtests resolve to four factors: attention, processing speed, motor speed, and memory with acceptable psychometric properties. Patterns of scores obtained by three groups of patient-participants provided reasonable evidence of clinical validity for screening and monitoring change.
  
  
  CONCLUSIONS
  An Internet-based system holds promise for applying complex statistical models for routine monitoring of cognitive function.
authors.affiliation: HeadMinder, Inc. New York, New York, USA. david@headminder.com
authors.forename: David M
authors.initials: DM
authors.lastname: Erlanger
authors.forename: Tanya
authors.initials: T
authors.lastname: Kaushik
authors.forename: Donna
authors.initials: D
authors.lastname: Broshek
authors.forename: Jason
authors.initials: J
authors.lastname: Freeman
authors.forename: Daniel
authors.initials: D
authors.lastname: Feldman
authors.forename: Joanne
authors.initials: J
authors.lastname: Festa
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001930:Brain Injuries / Q000150:complications*; D003072:Cognition Disorders / Q000175:diagnosis* / Q000209:etiology*; D005260:Female; D006304:Health Status; D006801:Humans; D020407:Internet; D008297:Male; D008403:Mass Screening; D008875:Middle Aged; D016730:Program Development; D015203:Reproducibility of Results; D013686:Telemetry