title: Sensitivity of tests to assess improvement in ADHD symptomatology.
abstract: OBJECTIVE
  To assess which measurements best predict improvement on ADHD symptomatology after medication is given.
  
  
  METHODS
  147 children aged 6 to 12 years, diagnosed with ADHD, participated in a double-blind placebo controlled twoweek crossover trial of methylphenidate.
  
  
  RESULTS
  There were statistically significant differences on all measures between placebo and medication. Effect size for the overall group was 0.33 (CGI-P), 0.80 (CGI-T), 1.33 (CGI), 0.56 (CPT), 0.82 (RASS).
  
  
  CONCLUSIONS
  Acute behavioural response measures, where children are observed by clinicians (RASS and CGI), were overall more reliable than parent reports in detecting improvement on ADHD symptomatology. Teacher reports were also very important, especially in the 9 to 12 year old group.
authors.affiliation: Department of Psychiatry, McGill University.
authors.forename: Natalie
authors.initials: N
authors.lastname: Grizenko
authors.forename: Martin
authors.initials: M
authors.lastname: Lachance
authors.forename: Vincent
authors.initials: V
authors.lastname: Collard
authors.forename: Philippe
authors.initials: P
authors.lastname: Lageix
authors.forename: Chantal
authors.initials: C
authors.lastname: Baron
authors.forename: Leila
authors.initials: L
authors.lastname: Ben Amor
authors.forename: Marina Ter
authors.initials: MT
authors.lastname: Stepanian
authors.forename: Valentin
authors.initials: V
authors.lastname: Mbekou
authors.forename: George
authors.initials: G
authors.lastname: Schwartz
authors.forename: Johanne
authors.initials: J
authors.lastname: Bellingham
authors.forename: Ridha
authors.initials: R
authors.lastname: Joober