bastian denver ahcj_stats_ftw_2014-03-27
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Hilda Bastian @hildabastAssociation of Health Care Journalists (AHCJ) Health Journalism 2014, Denver 27 March
Statistically Funny blogspot
Tips for better stories:#StatsFTW!
Absolutely Maybeat Scientific American
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Remember data don’t speakfor themselves
Think through the context of what happened, the methods of collection and method of analysis before analyzing the data
With extra academic spin
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A good study means….what?
• If it’s the wrong study type, statistics can’t save it• Statistics & methods evolve• Think of studies, study reports & outcomes separately…
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Look at each outcome separately
The strength & quality of data vary within a study. And always look for all outcomes not just the ones researchers point you to... especially
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Why so manyconflictingstudies….?
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Don’t look at one studyin isolation
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Chocolate…
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Avoidover-precision
Always think about confidence intervals/margins of error, matching use of numbers & language to data certainty (47.23% or just less than half?)
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Don’t mistake absence ofevidence for evidence of absence
Lights…
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Miller et al, 2014
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Independent UK Panel on Breast Cancer Screening, 2012
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Miller et al, 2014
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Independent UK Panel on Breast Cancer Screening, 2012
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Be as critical of the data you want to believe as you are about what you disagree with
The biggest bias we have to deal with is our own.