Post hoc power analysis: an idea whose time has passed?
Pharmacotherapy
; 21(4): 405-9, 2001 Apr.
Article
in En
| MEDLINE
| ID: mdl-11310512
ABSTRACT
Using a hypothetical scenario typifying the experience that authors have when submitting manuscripts that report results of negative clinical trials, the pitfalls of a post hoc analysis are illustrated. We used the same scenario to explain how confidence intervals are used in interpreting results of clinical trials. We showed that confidence intervals better inform readers about the possibility of an inadequate sample size than do post hoc power calculations.
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Collection:
01-internacional
Database:
MEDLINE
Main subject:
Periodicals as Topic
/
Confidence Intervals
/
Randomized Controlled Trials as Topic
Type of study:
Clinical_trials
Limits:
Humans
Language:
En
Journal:
Pharmacotherapy
Year:
2001
Document type:
Article
Affiliation country:
Canada