﻿

# non-parametric statistics

A branch of statistical inference which makes no assumptions about the underlying distributional form of variables . While parametric statistics are based upon an ideal hypothetical mathematical form for the data (usually the normal distribution ), some statisticians claim that for social science data the assumptions required to do this are hardly ever justified, and consequently that it is always preferable to use non-parametric statistics (see, for example,, Practical Nonparametric Statistics, 1980). A well-known example, equivalent to the parametric t-test, is the Mann-Whitney U-test.

Dictionary of sociology. 2013.

### Look at other dictionaries:

• Non-parametric statistics — In statistics, the term non parametric statistics has at least two different meanings: The first meaning of non parametric covers techniques that do not rely on data belonging to any particular distribution. These include, among others:… …   Wikipedia

• Parametric statistics — are statistics where the population is assumed to fit any parametrized distributions (most typically the normal distribution). The opposite is non parametric statistics.Parametric inferential statistical methods are mathematical procedures for… …   Wikipedia

• parametric statistics — A branch of statistical inference which makes assumptions about the underlying mathematical distributional form of observed variables. The most familiar of these hypothetical mathematical distributions is the normal distribution . Binomial and… …   Dictionary of sociology

• non-parametric — non parametˈric adjective (statistics) Not requiring assumptions about the form of a frequency distribution • • • Main Entry: ↑non …   Useful english dictionary

• nonparametric statistics — non parametric statistics …   Dictionary of sociology

• List of statistics topics — Please add any Wikipedia articles related to statistics that are not already on this list.The Related changes link in the margin of this page (below search) leads to a list of the most recent changes to the articles listed below. To see the most… …   Wikipedia

• Resampling (statistics) — In statistics, resampling is any of a variety of methods for doing one of the following: # Estimating the precision of sample statistics (medians, variances, percentiles) by using subsets of available data (jackknife) or drawing randomly with… …   Wikipedia

• Outline of statistics — The following outline is provided as an overview and guide to the variety of topics included within the subject of statistics: Statistics pertains to the collection, analysis, interpretation, and presentation of data. It is applicable to a wide… …   Wikipedia

• International Mathematics and Statistics Library — Développeur Visual Numerics Type Analyse Numérique et Statistique IMSL C …   Wikipédia en Français

• Portal:Statistics — Wikipedia portals: Culture Geography Health History Mathematics Natural sciences People Philosophy Religion Society Technology …   Wikipedia