What do we have to do when we have a one-tailed hypothesis and find a significant main effect where the IV has three conditions?
A) Look at descriptive statistics and planned contrasts.
B) Look at descriptive statistics and post hoc contrasts.
C) Look at descriptive statistics only.
D) Look at both post hocs and planned contrasts.

Question

Quizplus · Accepted Answer

When dealing with a one-tailed hypothesis that finds a significant main effect with an independent variable (IV) having three conditions, it's appropriate to look at descriptive statistics to understand the nature of the data and perform planned contrasts. Planned contrasts are specific comparisons between means that were hypothesized before the data were collected, which aligns with the directional prediction of a one-tailed hypothesis.

What Do We Have to Do When We Have a One-Tailed