-AT_BANNER([T-TEST])
+/AT_BANNER([T-TEST])
AT_SETUP([T-TEST /PAIRS])
AT_DATA([t-test.sps], [dnl
Table: Paired Sample Statistics
,,Mean,N,Std. Deviation,S.E. Mean
-Pair 0,A,2.00,5,.71,.32
+Pair 1,A,2.00,5,.71,.32
,B,4.00,5,1.54,.69
Table: Paired Samples Correlations
,,N,Correlation,Sig.
-Pair 0,A & B,5,.92,.03
+Pair 1,A & B,5,.92,.03
Table: Paired Samples Test
,,Paired Differences,,,,,,,
,,,,,95% Confidence Interval of the Difference,,,,
,,Mean,Std. Deviation,Std. Error Mean,Lower,Upper,t,df,Sig. (2-tailed)
-Pair 0,A - B,-2.00,.94,.42,-3.16,-.84,-4.78,4,.01
+Pair 1,A - B,-2.00,.94,.42,-3.16,-.84,-4.78,4,.01
])
AT_CLEANUP
Table: Paired Sample Statistics
,,Mean,N,Std. Deviation,S.E. Mean
-Pair 0,a,2.00,5,.71,.32
+Pair 1,a,2.00,5,.71,.32
,b,4.00,5,1.54,.69
-Pair 1,c,5.10,5,.69,.31
+Pair 2,c,5.10,5,.69,.31
,d,3.80,5,.16,.07
Table: Paired Samples Correlations
,,N,Correlation,Sig.
-Pair 0,a & b,5,.92,.03
-Pair 1,c & d,5,-.92,.03
+Pair 1,a & b,5,.92,.03
+Pair 2,c & d,5,-.92,.03
Table: Paired Samples Test
,,Paired Differences,,,,,,,
,,,,,95% Confidence Interval of the Difference,,,,
,,Mean,Std. Deviation,Std. Error Mean,Lower,Upper,t,df,Sig. (2-tailed)
-Pair 0,a - b,-2.00,.94,.42,-3.16,-.84,-4.78,4,.01
-Pair 1,c - d,1.30,.84,.37,.26,2.34,3.47,4,.03
+Pair 1,a - b,-2.00,.94,.42,-3.16,-.84,-4.78,4,.01
+Pair 2,c - d,1.30,.84,.37,.26,2.34,3.47,4,.03
])
AT_CHECK([pspp -o ref.csv ref.sps])
AT_CHECK([cat ref.csv], [0], [expout])
end data.
-t-test /MISSING=analysis /PAIRS a c with b d (PAIRED).
+t-test /MISSING=analysis /PAIRS a c with b d (PAIRED) /CRITERIA=CIN(0.95).
])
AT_CHECK([pspp -o missing.csv missing.sps])
AT_CHECK([cat missing.csv], [0], [expout])
Table: Paired Sample Statistics
,,Mean,N,Std. Deviation,S.E. Mean
-Pair 0,a,2.00,5,.71,.32
+Pair 1,a,2.00,5,.71,.32
,c,5.10,5,.69,.31
-Pair 1,b,4.00,5,1.54,.69
+Pair 2,b,4.00,5,1.54,.69
,d,3.80,5,.16,.07
Table: Paired Samples Correlations
,,N,Correlation,Sig.
-Pair 0,a & c,5,.41,.49
-Pair 1,b & d,5,-.87,.05
+Pair 1,a & c,5,.41,.49
+Pair 2,b & d,5,-.87,.05
Table: Paired Samples Test
,,Paired Differences,,,,,,,
,,,,,95% Confidence Interval of the Difference,,,,
,,Mean,Std. Deviation,Std. Error Mean,Lower,Upper,t,df,Sig. (2-tailed)
-Pair 0,a - c,-3.10,.76,.34,-4.04,-2.16,-9.14,4,.00
-Pair 1,b - d,.20,1.68,.75,-1.89,2.29,.27,4,.80
+Pair 1,a - c,-3.10,.76,.34,-4.04,-2.16,-9.14,4,.00
+Pair 2,b - d,.20,1.68,.75,-1.89,2.29,.27,4,.80
])
AT_CHECK([pspp -o ref.csv ref.sps])
AT_CHECK([cat ref.csv], [0], [expout])
Table: Paired Sample Statistics
,,Mean,N,Std. Deviation,S.E. Mean
-Pair 0,A,4.333,3,5.774,3.333
+Pair 1,A,4.333,3,5.774,3.333
,B,1.333,3,.577,.333
Table: Paired Samples Correlations
,,N,Correlation,Sig.
-Pair 0,A & B,3,1.000,.000
+Pair 1,A & B,3,1.000,.000
Table: Paired Samples Test
,,Paired Differences,,,,,,,
,,,,,95% Confidence Interval of the Difference,,,,
,,Mean,Std. Deviation,Std. Error Mean,Lower,Upper,t,df,Sig. (2-tailed)
-Pair 0,A - B,3.000,5.196,3.000,-9.908,15.908,1.000,2,.423
+Pair 1,A - B,3.000,5.196,3.000,-9.908,15.908,1.000,2,.423
])
AT_CLEANUP
Table: Group Statistics
,INDEP,N,Mean,Std. Deviation,S.E. Mean
-DEP1,1.1,5,2.00,.71,.32
-,2.1,5,4.00,.71,.32
-DEP2,1.1,5,4.00,.71,.32
-,2.1,5,2.00,.71,.32
+DEP1,1.10,5,2.00,.71,.32
+,2.10,5,4.00,.71,.32
+DEP2,1.10,5,4.00,.71,.32
+,2.10,5,2.00,.71,.32
Table: Independent Samples Test
,,Levene's Test for Equality of Variances,,t-test for Equality of Means,,,,,,
Table: Group Statistics
,INDEP,N,Mean,Std. Deviation,S.E. Mean
-DEP,>=1.514,11,9.00,3.82,1.15
-,<1.514,11,8.00,2.86,.86
+DEP,≥ 1.51,11,9.00,3.82,1.15
+,< 1.51,11,8.00,2.86,.86
Table: Independent Samples Test
,,Levene's Test for Equality of Variances,,t-test for Equality of Means,,,,,,
,,,,,,,,,95% Confidence Interval of the Difference,
,,F,Sig.,t,df,Sig. (2-tailed),Mean Difference,Std. Error Difference,Lower,Upper
-DEP,Equal variances assumed,.17,.68,-.69,20.00,.50,-1.00,1.44,-4.00,2.00
-,Equal variances not assumed,,,-.69,18.54,.50,-1.00,1.44,-4.02,2.02
+DEP,Equal variances assumed,.17,.68,.69,20.00,.50,1.00,1.44,-2.00,4.00
+,Equal variances not assumed,,,.69,18.54,.50,1.00,1.44,-2.02,4.02
])
AT_CLEANUP
Table: Group Statistics
,indep,N,Mean,Std. Deviation,S.E. Mean
-dep1,1,3,2.50,.87,.50
-,2,2,3.25,.35,.25
-dep2,1,3,5.00,1.00,.58
-,2,2,2.00,1.41,1.00
+dep1,1.00,3,2.50,.87,.50
+,2.00,2,3.25,.35,.25
+dep2,1.00,3,5.00,1.00,.58
+,2.00,2,2.00,1.41,1.00
Table: Independent Samples Test
,,Levene's Test for Equality of Variances,,t-test for Equality of Means,,,,,,
Table: Group Statistics
,indep,N,Mean,Std. Deviation,S.E. Mean
-dep1,1,3,2.50,.87,.50
-,2,3,3.50,.50,.29
-dep2,1,3,5.00,1.00,.58
-,2,3,2.00,1.00,.58
+dep1,1.00,3,2.50,.87,.50
+,2.00,3,3.50,.50,.29
+dep2,1.00,3,5.00,1.00,.58
+,2.00,3,2.00,1.00,.58
Table: Independent Samples Test
,,Levene's Test for Equality of Variances,,t-test for Equality of Means,,,,,,
Table: Group Statistics
,ind,N,Mean,Std. Deviation,S.E. Mean
-x,1,3,2.50,.87,.50
-,2,3,3.50,.50,.29
+x,1.00,3,2.50,.87,.50
+,2.00,3,3.50,.50,.29
Table: Independent Samples Test
,,Levene's Test for Equality of Variances,,t-test for Equality of Means,,,,,,
T-TEST /groups=id(3) .
])
AT_CHECK([pspp -O format=csv t-test.sps], [1], [dnl
-t-test.sps:11: error: T-TEST: One or more VARIABLES must be specified.
+t-test.sps:11: error: T-TEST: Required subcommand VARIABLES was not specified.
-t-test.sps:12: error: T-TEST: One or more VARIABLES must be specified.
+t-test.sps:12: error: T-TEST: Required subcommand VARIABLES was not specified.
])
AT_CLEANUP
])
AT_CLEANUP
+
+
+dnl Tests for a bug assert failed when the group variables were not of either class
+AT_SETUP([T-TEST wrong group])
+AT_DATA([t-test-crs.sps], [dnl
+data list list /x * g *.
+begin data.
+1 2
+2 2
+3 2
+4 2
+5 2
+end data.
+
+t-test /variables = x group=g(1,3).
+])
+
+AT_CHECK([pspp t-test-crs.sps], [0],[ignore], [ignore])
+
+AT_CLEANUP