If you conduct an experiment with three or more conditions and have specific hypotheses about the differences that should be found between conditions, you should conduct
A) only an omnibus ANOVA (F-test).
B) planned comparisons of condition means.
C) an omnibus ANOVA followed by post-hoc comparisons of condition means.
D) comparisons of condition variances rather than condition means.

Question

Quizplus · Accepted Answer

Planned comparisons are used when specific hypotheses about differences between conditions are made before the data is collected, allowing for targeted testing of these hypotheses.

If You Conduct an Experiment with Three or More Conditions