PAIRED SAMPLES T-TEST
This example is based on:
Body dissatisfaction was measured in adult women (n = 322) ranging
in age from 20 to 84. Using the Figure Rating Scale, the women were
asked to select their current figure and their ideal figure from a series
of silhouette drawings. The drawings were numbered from 10-90. Body
dissatisfaction is the discrepancy between the ideal and current ratings.
The following table lists the means that were compared in the study.
Using the data presented in Tiggemann & Lynch's study, we will perform a power analysis.