Inductive Inference Is The Only

The Best Causes Tend To Attract To Their Support The Worst Arguments, Which Seems To Be Equally True In The Intellectual And In The Moral Sense.

The So-called Co-efficient Of Heritability, Which I Regard As One Of Those Unfortunate Short-cuts, Which Have Often Emerged In Biometry For Lack Of A More Thorough Analysis Of The Data.

[coining The Phrase "test Of Significance"] Critical Tests Of This Kind May Be Called Tests Of Significance, And When Such Tests Are Available We May Discover Whether A Second Sample Is Or Is Not Significantly Different From The First.

[coining Phrase "null Hypothesis"] In Relation To Any Experiment We May Speak Of This Hypothesis As The "null Hypothesis," And It Should Be Noted That The Null Hypothesis Is Never Proved Or Established, But Is Possibly Disproved, In The Course Of Experimentation. Every Experiment May Be Said To Exist Only In Order To Give The Facts A Chance Of Disproving The Null Hypothesis.

If ... We Choose A Group Of Social Phenomena With No Antecedent Knowledge Of The Causation Or Absence Of Causation Among Them, Then The Calculation Of Correlation Coefficients, Total Or Partial, Will Not Advance Us A Step Toward Evaluating The Importance Of The Causes At Work.