Confidence Intervals By Means of Noncentrality Parameters
Confidence intervals of standardized effect sizes, especially Cohen's and, rely on the calculation of confidence intervals of noncentrality parameters (ncp). A common approach to construct the confidence interval of ncp is to find the critical ncp values to fit the observed statistic to tail quantiles α/2 and (1 − α/2). The SAS and R-package MBESS provides functions to find critical values of ncp.
Read more about this topic: Effect Size
Famous quotes containing the words confidence, intervals, means and/or parameters:
“Every journalist who is not too stupid or too full of himself to notice what is going on knows that what he does is morally indefensible. He is a kind of confidence man, preying on people’s vanity, ignorance, or loneliness, gaining their trust and betraying them without remorse.”
—Janet Malcolm (b. 1934)
“Peter the Hermit, Calvin, and Robespierre, sons of the same soil, at intervals of three centuries were, in a political sense, the levers of Archimedes. Each in turn was an embodied idea finding its fulcrum in the interests of man.”
—Honoré De Balzac (1799–1850)
“In making a speech one must study three points: first, the means of producing persuasion; second, the language; third the proper arrangement of the various parts of the speech.”
—Aristotle (384–323 B.C.)
“What our children have to fear is not the cars on the highways of tomorrow but our own pleasure in calculating the most elegant parameters of their deaths.”
—J.G. (James Graham)