NPC TEST 2.0: Statistical Software for Multivariate Permutation Tests

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PERMUTATION APPROACH FOR HYPOTHESIS TESTING

The multivariate permutation approach for hypothesis testing by NonParametric Combination (NPC) offers the following advantages:

No need to specify the dependence structure among variables

Exact solutions

Powerful tests

Treatment of missing values (missing completely at random, MCAR, or not completely at random, not-MAR)

   It also deals with

   Stratification

Multivariate categorical variables

   It handles

     Mixed variables

  Multivariate restricted alternatives

NPC TEST is a unique and innovative statistical software tool that provides researchers with authentic and powerful innovative solutions in the field of hypotheses testing.

 

FEATURES OF STATISTICAL SOFTWARE NPC TEST 2.0

NPC TEST allows us to perform hypothesis testing in the case of

        Two and C samples with dependent or independent variables

        Two and C samples with repeated measures

        Stratified analysis

NPC TEST also provides:

        Powerful test statistics for the treatment of missing values

        One or two tailed test

Data types handled:

        categorical

        ordered categorical

        numeric or continuous

        binary

An innovation unique to NPC TEST allows the performance of any combination of tests, starting with an appropriate set of elementary tests, in a multivariate or multistrata overall global test through the NPC methodology.

Elementary partial test statistics include:

   t Statistic

   ANOVA

   difference of means

   test statistics - missing values

   Anderson Darling

   Cramer-Von-Mises

   Chi-square

   Modified
Chi-square

   Likelihood Ratio

Combining functions for intermediate tests include:

        Fisher

        Liptak

        Tippet

        Direct

NPC TEST supports all statistical software standard functions: data import, data manipulating and produces an effective report that can be easily integrated and customized by means of an efficient text editor.