SPSS® 12.0 Command Syntax Reference

1726 Appendix D
• !TOKENS(1) specifies that the value of an argument is a string that follows the name of
the argument in the macro call. Thus the first macro call specifies values of 0.66, 30,
and 0.85 for R, N, and P.
• Commands between INPUT PROGRAM and END INPUT PROGRAM create a working
data file with one case. COMPUTE statements calculate the Z statistic and its probability
using the values of macro arguments R, N, and P. (INPUT PROGRAM commands
would not be needed if COMPUTE statements operated on values in an existing file or
inline data, rather than macro arguments.)
• A customized TITLE shows displays the values of macro arguments used in
computing Z.
• The LIST command displays Z and its probability.
• The !CORRTST macro is called twice in Figure D.12. The first invocation tests an r of
0.66 from a sample of 30 cases against a population coefficient of 0.85 (this generates
the same Z value and probability as in Figure D.11). The second macro call tests an r
of 0.50 from a sample of 50 cases against the same population correlation coefficient.
The output from these macro calls is shown in Figure D.13.
Figure D.13 Output from !CORRTST
SAMPLE R= .66 , N= 30 , POPULATION COEFFICIENT= .85
Z PROB
-2.41 .016
SAMPLE R= .50 , N= 50 , POPULATION COEFFICIENT= .85
Z PROB
-4.85 .000
Figure D.14 shows a modified !CORRTST macro that you can use to test a sample r
against each coefficient in a list of population coefficients.