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Statistics, probability, significance, likelihood: words mean what we define them to mean
Author(s) -
Drummond Gordon B,
Tom Brian D M
Publication year - 2011
Publication title -
clinical and experimental pharmacology and physiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.752
H-Index - 103
eISSN - 1440-1681
pISSN - 0305-1870
DOI - 10.1111/j.1440-1681.2011.05570.x
Subject(s) - biostatistics , library science , medicine , public health , psychology , computer science , pathology
• ‘Student’ was a statistician who worked in quality control. • The t-test asks ‘how probable are these samples, if they have been sampled from the same source?’ • Considering what would be found when repeated samples are taken is the frequentist approach to statistical testing • Student’s t-test does not indicate the probability that the null hypothesis is true • Other methods of testing experimental results can be more appropriate • We may need to ask ‘how different?’ or ‘is there no effect?’