The FREQ Procedure

TEST Statement

Computes asymptotic tests for the specified measures of association and measures of agreement.

Requirement: TABLES statement

Main discussion: Asymptotic Tests

Featured in: Computing the Cochran-Armitage Trend Test

TEST statistic-keyword(s);

Required Arguments

statistic-keyword(s)

specifies the statistics for which to provide asymptotic tests. The available statistics are the measures of association and agreement listed in TEST Statement Statistic-keywords and Required TABLES Statement Options . You can use an individual keyword to request a test, or you can use a group keyword (MEASURES or AGREE) to request all available tests in that group.

For each measure of association or agreement that you specify, the TEST statement provides an asymptotic test that the measure equal zero. When you request an asymptotic test, PROC FREQ gives the asymptotic standard error under the null hypothesis, the test statistic, and the p-values. Additionally, PROC FREQ reports the confidence limits for that measure. The ALPHA= option in the TABLES statement determines the confidence level, which by default equals .05 and provides 95 percent confidence limits. In addition to these asymptotic tests, exact tests for selected measures of association and agreement are available with the EXACT statement. See EXACT Statement for more information.

TEST Statement Statistic-keywords and Required TABLES Statement Options
Keyword Asymptotic tests computed Required TABLES statement option

AGREE simple kappa coefficient and weighted kappa coefficient AGREE

GAMMA gamma ALL, MEASURES

KAPPA simple kappa coefficient AGREE

KENTB Kendall's tau-b ALL, MEASURES

MEASURES gamma, Kendall's tau-b, Stuart's tau-c, Somers' D (C|R), Somers' D (R|C), Pearson correlation coefficient, and Spearman correlation coefficient ALL, MEASURES

PCORR Pearson correlation coefficient ALL, MEASURES

SCORR Spearman correlation coefficient ALL, MEASURES

SMDCR Somers' D (C|R) ALL, MEASURES

SMDRC Somers' D (R|C) ALL, MEASURES

STUTC Stuart's tau-c ALL, MEASURES

WTKAP weighted kappa coefficient AGREE

***TEST Statement Statistic-keywords and Required TABLES Statement Options***
Keyword	Asymptotic tests computed	Required TABLES statement option
AGREE	simple kappa coefficient and weighted kappa coefficient	AGREE
GAMMA	gamma	ALL, MEASURES
KAPPA	simple kappa coefficient	AGREE
KENTB	Kendall's tau-b	ALL, MEASURES
MEASURES	gamma, Kendall's tau-b, Stuart's tau-c, Somers' D (C\|R), Somers' D (R\|C), Pearson correlation coefficient, and Spearman correlation coefficient	ALL, MEASURES
PCORR	Pearson correlation coefficient	ALL, MEASURES
SCORR	Spearman correlation coefficient	ALL, MEASURES
SMDCR	Somers' D (C\|R)	ALL, MEASURES
SMDRC	Somers' D (R\|C)	ALL, MEASURES
STUTC	Stuart's tau-c	ALL, MEASURES
WTKAP	weighted kappa coefficient	AGREE

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Requirement:	TABLES statement
Main discussion:	Asymptotic Tests
Featured in:	Computing the Cochran-Armitage Trend Test