--- In FairfieldLife@yahoogroups.com, "sparaig" <[EMAIL PROTECTED]> wrote: > > --- In FairfieldLife@yahoogroups.com, "authfriend" <jstein@> wrote: > > > > http://polmeth.wustl.edu/retrieve.php?id=640 > > (PDF file) > > > > Alan Gerber and Neil Malhotra, "Can political science > > literatures be believed? A study of publication bias > > in the APSR and the AJPS" > > > > There's publication bias, and experimenter bias, and I doubt if there's any way to tell the > difference. The "file drawer" effect where a null-finding study gets filed away because the > researcher wants to find an effect, or maybe simply because the researcher *assumes* that > null-finding studies don't get published as often as positive- finding studies, is well known.
Did you look at the study? The most interesting finding, it seemed to me (and please excuse if I don't get the terminology right), was that of the various studies they looked at, there were far more that *just barely* achieved significance than there were studies that *just barely* did NOT achieve significance. Statistically, there should be a relatively equivalent number of studies on both sides of the significance line if results were being reported accurately. They concluded that results that were null or did did not *quite* achieve significance had often been tweaked to push them just over the line. To subscribe, send a message to: [EMAIL PROTECTED] Or go to: http://groups.yahoo.com/group/FairfieldLife/ and click 'Join This Group!' Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/FairfieldLife/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/FairfieldLife/join (Yahoo! ID required) <*> To change settings via email: mailto:[EMAIL PROTECTED] mailto:[EMAIL PROTECTED] <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
