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Statistics

Lie to me

Obfuscation factor. Obfuscation factor helps us, when conducting a survey, to assess the bias that can be caused by false answers o lies.

06/18/2013

Critical appraisal

Funnel asymmetry

Publication bias. There is publication bias when not all the relevant information on a topic is published. The methods available to detect it are described.

06/11/2013

Critical appraisal

Don’t let you can’t see the wood for the trees

PRISMA statement. PRISMA statement establishes the methodological requirements that a systematic review with meta-analysis must comply.

06/04/2013

Critical appraisal

Take care of the pennies, and the pounds will take care of themselves

Combining studies in meta-analysis. Combining studies in meta-analysis uses a weighting model. The two most used are the fixed effect model and the random effects model.