An Overview of Remedial Tools for the Violation of Parametric Test Assumptions in the Sas System
نویسنده
چکیده
Parametric tests are widely applied by researchers in every discipline. However, sometimes the appropriateness of their applications is in question. In a parametric test an underlying distribution is assumed, and a sample statistic is obtained to estimate the population parameter. Because this estimation process involves a sample, a sampling distribution, and a population, certain assumptions are required to ensure that all components are compatible with each other. As a matter of fact, data collected in social sciences usually violate parametric assumptions to some degree. The objectives of this paper are to briefly explain why these violations are detrimental to research and to introduce what alternatives could be used in the SAS system to rectify the situation.
منابع مشابه
Rational Choice Theory: An Overview
It seems easy to accept that rationality involves many features that cannot be summarized in terms of some straightforward formula, such as binary consistency. However, this recognition does not immediately lead to alternative characterizations that might be regarded as satisfactory, even though the inadequacies of the traditional assumptions of rational behavior standard used in economic theo...
متن کاملStochastic Non-Parametric Frontier Analysis
In this paper we develop an approach that synthesizes the best features of the two main methods in the estimation of production efficiency. Specically, our approach first allows for statistical noise, similar to Stochastic frontier analysis, and second, it allows modeling multiple-inputs-multiple-outputs technologies without imposing parametric assumptions on production relationship, similar to...
متن کاملMeasuring user's emotional experience in two tools using an integrated method based on task analysis
Background and Objectives: Human factors are critical in the research and development of various products, but the wideness and unclarity of different aspects of these factors make it difficult to extract the demands of users. Studying emotional aspects of users' behavior with respect to products, as well as interviewing them, is considered an efficient tool for extracting design demands. Me...
متن کاملRational Choice Theory: An Overview
It seems easy to accept that rationality involves many features that cannot be summarized in terms of some straightforward formula, such as binary consistency. However, this recognition does not immediately lead to alternative characterizations that might be regarded as satisfactory, even though the inadequacies of the traditional assumptions of rational behavior standard used in economic theo...
متن کاملNormal forms of Hopf Singularities: Focus Values Along with some Applications in Physics
This paper aims to introduce the original ideas of normal form theory and bifurcation analysis and control of small amplitude limit cycles in a non-technical terms so that it would be comprehensible to wide ranges of Persian speaking engineers and physicists. The history of normal form goes back to more than one hundreds ago, that is to the original ideas coming from Henry Poincare. This tool p...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2002