SPSS® 12.0 Command Syntax Reference

1078 NONPAR CORR
Example
NONPAR CORR VARS=PRESTIGE SPPRES PAPRES16 WITH DEGREE PADEG MADEG.
• The three variables listed before WITH define the rows; the three variables listed after WITH
define the columns of the correlation matrix.
• Spearman’s rho is displayed by default.
Example
NONPAR CORR VARIABLES=SPPRES PAPRES16 PRESTIGE
/SATCITY WITH SATHOBBY SATFAM.
• NONPAR CORR produces two Correlations tables.
• By default, Spearman’s rho is displayed.
PRINT Subcommand
By default, NONPAR CORR displays Spearman correlation coefficients. The significance
level(s) are displayed below the coefficients. The significance level is based on a two-tailed
test. Use PRINT to change these defaults.
• The Spearman and Kendall coefficients are both based on ranks.
SPEARMAN Spearman’s rho. Only Spearman coefficients are displayed. This is the default.
KENDALL Kendall’s tau-b. Only Kendall coefficients are displayed.
BOTH Kendall and Spearman coefficients. Both coefficients are displayed. If
MATRIX is used to write the correlation matrix to a matrix data file, only
Spearman coefficients are written with the matrix materials.
SIG Display the significance level. This is the default.
NOSIG Display the significance level in an annotation.
TWOTAIL Two-tailed test of significance. This test is appropriate when the direction of
the relationship cannot be determined in advance, as is often the case in
exploratory data analysis. This is the default.
ONETAIL One-tailed test of significance. This test is appropriate when the direction of
the relationship between a pair of variables can be specified in advance of
the analysis.
SAMPLE Subcommand
NONPAR CORR must store cases in memory to build matrices. SAMPLE selects a random
sample of cases when computer resources are insufficient to store all the cases. To request a
random sample, simply specify the subcommand. SAMPLE has no additional specifications.