ANCOVA Test

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An ANCOVA Test is a statistical hypothesis test based on a regressed ANCOVA model (produced by ANCOVA regression).



References

2005

2004

  • http://people.uncw.edu/pricej/teaching/statistics/ancova.htm
    • This is a multivariate means test. It is just like the ANOVA you learned in the last section. But it enables you to add a control variable. Used when:
    • You write the same hypotheses as with ANOVA, do the test the same way, and interpret the results the same way.
      • Null: There is no relationship between the IV and the DV, controlling for the CV. The means are equal. Mean 1 = mean 2 = mean 3 ..... F = 0.
      • Research: There is a relationship between the IV and the DV, controlling for the CV. The means are not equal. Mean 1 ≠ mean 2 ≠ mean 3 .... F ≠ 0.