<pre>help smecriticalvalue
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Title

    smecriticalvalue --
                   Computes critical values for tests of simple main effects and related tests.


Syntax

        smecriticalvalue, number(#) df1(#) df2(#) dfmodel(#) [alpha(#)]


    options                  description
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    Required
      number(#)              Number of test performed
      df1(#)                 Numerator df for each test
      df2(#)                 Denominator df for each test
      dfmodel(#)             Total df for full model

    Optional
      alpha(#)               Alpha level
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Description

    smecriticalvalue computes critical values for tests of simple main effects and related tests.

Examples

    Consider a 3x4 factorial design with 5 obs per cell; the total df for the 3x4 model is 11; you run 4 tests of simple main effects,
    each with 2 and 48 df.

        . smecriticalvalue, num(4) df1(2) df2(48) dfm(11)

Reference

    (1995) Kirk, R.E. Experimental design: Procedures for the behavioral sciences (3rd ed). Pacific Grove, CA: Brooks/Cole

Author

    Philip B. Ender
    UCLA Statistical Consulting Group
    ender@ucla.edu
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