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Clinician, parent, and child prediction of medication or placebo in double-blind depression study.

Publication ,  Journal Article
Hughes, CW; Emslie, G; Kowatch, R; Weinberg, W; Rintelmann, J; Rush, AJ
Published in: Neuropsychopharmacology
November 2000

To evaluate how well a blind is maintained in a double-blind study. Clinicians (n = 66), parents (n = 62), and depressed child/adolescent subjects (n = 62) predicted whether the patient had been on either placebo or active medication at the end of an eight-week double-blind placebo versus fluoxetine trial. Clinician, patient and parents' guesses as to which treatment they had received were at a chance level based on an overall analysis. However, when clinical response and condition assignment were controlled, all were correctly predicting placebo treatment but not medication treatment. The finding that subjects, parents and clinicians predict at a chance level is important for double-blind study design integrity. However, clinicians, parents and subjects were accurately predicting placebo treatment when clinical response and the assigned condition were taken into account but not medication. Since they do not know condition however, all remain essentially blinded, and this is an important finding for design and analysis integrity for double-blind studies.

Duke Scholars

Published In

Neuropsychopharmacology

DOI

ISSN

0893-133X

Publication Date

November 2000

Volume

23

Issue

5

Start / End Page

591 / 594

Location

England

Related Subject Headings

  • Treatment Outcome
  • Psychiatry
  • Psychiatric Status Rating Scales
  • Male
  • Humans
  • Fluoxetine
  • Female
  • Double-Blind Method
  • Depressive Disorder
  • Child
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Hughes, C. W., Emslie, G., Kowatch, R., Weinberg, W., Rintelmann, J., & Rush, A. J. (2000). Clinician, parent, and child prediction of medication or placebo in double-blind depression study. Neuropsychopharmacology, 23(5), 591–594. https://doi.org/10.1016/S0893-133X(00)00098-1
Hughes, C. W., G. Emslie, R. Kowatch, W. Weinberg, J. Rintelmann, and A. J. Rush. “Clinician, parent, and child prediction of medication or placebo in double-blind depression study.Neuropsychopharmacology 23, no. 5 (November 2000): 591–94. https://doi.org/10.1016/S0893-133X(00)00098-1.
Hughes CW, Emslie G, Kowatch R, Weinberg W, Rintelmann J, Rush AJ. Clinician, parent, and child prediction of medication or placebo in double-blind depression study. Neuropsychopharmacology. 2000 Nov;23(5):591–4.
Hughes, C. W., et al. “Clinician, parent, and child prediction of medication or placebo in double-blind depression study.Neuropsychopharmacology, vol. 23, no. 5, Nov. 2000, pp. 591–94. Pubmed, doi:10.1016/S0893-133X(00)00098-1.
Hughes CW, Emslie G, Kowatch R, Weinberg W, Rintelmann J, Rush AJ. Clinician, parent, and child prediction of medication or placebo in double-blind depression study. Neuropsychopharmacology. 2000 Nov;23(5):591–594.
Journal cover image

Published In

Neuropsychopharmacology

DOI

ISSN

0893-133X

Publication Date

November 2000

Volume

23

Issue

5

Start / End Page

591 / 594

Location

England

Related Subject Headings

  • Treatment Outcome
  • Psychiatry
  • Psychiatric Status Rating Scales
  • Male
  • Humans
  • Fluoxetine
  • Female
  • Double-Blind Method
  • Depressive Disorder
  • Child