The example of the moon illusion discussed in the text ...

[crobinson2013]

The example of the moon illusion discussed in the text illustrates the fact that
 
  a. the best estimate of the size of an effect need not use the standard deviation.
  b. standardized effect sizes are clearly superior.
  c. the moon grows as it rises in the sky.
  d. an effect size is best based on medians.

Question 2

When we have related samples, the best measure of the effect size uses
 
  a. the standard deviation of the difference scores.
  b. the standard deviation of the pretest scores (if they exist).
  c. the pooled estimate of the pre- and post-score standard deviations.
  d. none of the above

[bigcheese9]

Answer to Question 1

A

Answer to Question 2

B

[crobinson2013]

Excellent

[bigcheese9]

Gracias!