Home » Certification Exams Questions » When the value of a main effect estimate comes from both the main effect itself and also contamination or bias from higher order interactions, what is believed to have happened?

OPTIONS

  • The design got randomized
  • The design got blocked
  • The design experienced confounding
  • The design got unbalanced

ANSWER

The design experienced confounding

EXPLANATION

When main effect comes from higher order interactions, example A + BCD, confounding is said to have occurred, so THE THIRD OPTION is correct.

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