Effect Sizes

Some articles on effect sizes, size, effect, effect size:

Effect Size - "Small", "medium", "large"
... Some fields using effect sizes apply words such as "small", "medium" and "large" to the size of the effect ... Whether an effect size should be interpreted small, medium, or large depends on its substantial context and its operational definition ... Power analysis or sample size planning requires an assumed population parameter of effect sizes ...
Normal Curve Equivalent - Caution
... is required when computing effect sizes using NCEs ... such as raw and scaled scores, in the magnitude of the effect sizes ... Comparison of NCEs typically results in smaller effect sizes, and using the typical ranges for other effect sizes may result in interpretation errors ...
Overview - Population and Sample Effect Sizes
... The term effect size can refer to a statistic calculated from a sample of data, or to a parameter of a hypothetical statistical population ... Conventions for distinguishing sample from population effect sizes follow standard statistical practices — one common approach is to use Greek letters ... As in any statistical setting, effect sizes are estimated with error, and may be biased unless the effect size estimator that is used is appropriate for the ...
Psychoanalysis/Archives/2003-2005 - Training and Research - Evaluation of Effectiveness
... However it was said to have "little or no effect" on treating schizophrenia ... of Short Term Psychodynamic Psychotherapy (STPP) have found effect sizes ranging from 34-71% compared to no treatment and was found to be slightly better than other therapies in follow up ... Other reviews have found an effect size of 78-91% for somatic disorders compared to no treatment and 69% for treating depression ...
Effect Size
... In statistics, an effect size is a measure of the strength of a phenomenon (for example, the relationship between two variables in a statistical population) or a sample-based estimate of that quantity ... An effect size calculated from data is a descriptive statistic that conveys the estimated magnitude of a relationship without making any statement about whether the apparent relationship in ... In that way, effect sizes complement inferential statistics such as p-values ...

Famous quotes containing the word effect:

    The first general store opened on the ‘Cold Saturday’ of the winter of 1833 ... Mrs. Mary Miller, daughter of the store’s promoter, recorded in a letter: ‘Chickens and birds fell dead from their roosts, cows ran bellowing through the streets’; but she failed to state what effect the freeze had on the gala occasion of the store opening.
    —Administration in the State of Sout, U.S. public relief program (1935-1943)