A student has done an experiment involving a 4 × 2 design.The students' initial analysis of variance indicates that there was no statistically significant interaction effect in the experiment.The independent variable with four levels,however,did produce a statistically significant main effect.Which of the following analyses should the student do next to specify the source of this main effect more precisely?
A)eta-squared analyses
B)simple main effects
C)comparisons of two means
D)simple interaction effects

Question

Quizplus · Accepted Answer

The student should perform comparisons of two means, often referred to as post-hoc tests, to determine which specific levels of the independent variable with four levels differ from each other, thereby specifying the source of the main effect.

A Student Has Done an Experiment Involving a 4 ×