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Custom Tables Significance Testing when cell is 1 or 0

  • 1.  Custom Tables Significance Testing when cell is 1 or 0

    Posted Fri March 01, 2024 02:24 PM

    In the SPSS Statistics documentation under Comparing Column Proportions it says:
    "Also, note that the Separated column is marked with a ".", which indicates that the observed proportion of separated people in the Unemployed, laid off row is either 0 or 1, and therefore no comparisons can be made using that column for unemployed respondents."

    Why doesn't SPSS do significance testing vs. 0 or 1? Is there a way to override that setting?  When I run tables and one group is 100% and the other is 20%, that is clearly a significant difference but SPSS doesn't test it.

    Thoughts?



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    Stacey Cowgill
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  • 2.  RE: Custom Tables Significance Testing when cell is 1 or 0

    Posted Sat March 02, 2024 09:25 PM

    CTABLES perform asymptotic tests only, which cannot test "degenerate" cases such as 0 or 100 percent in a cell. For st. error of the statistic cannot be computed then. Use exact method testing.



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    Kirill Orlov
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