You Must Use Either Planned or Post Hoc Contrasts to Determine

question 1

Multiple Choice

You must use either planned or post hoc contrasts to determine which groups are different if you find a statistically significant ANCOVA. What determines whether you use planned or post hoc contrasts?

• A) Whether the hypothesis is one-tailed (directional) or two-tailed (no direction)
• B) Whether the data is normally distributed
• C) The sample size
• D) Whether the assumption of homogeneity of variance has been met or not

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