One of the simplest and most direct methods for measuring effect size is Cohen's d. (True or false?)

One of the simplest and most direct methods for measuring effect size is Cohen's d.
 
  Indicate whether the statement is true or false

Question 2

A binomial distribution has p = 1/3 and q = 2/3. How large a sample (n) is necessary to satisfy the criterion for using the normal approximation?
 
  A) 10
  B) 15
  C) 27
  D) 30

Question 3

A significant treatment effect does not necessarily indicate a large treatment effect.
 
  Indicate whether the statement is true or false

Question 4

If a binomial distribution has p = .30, then what is the value for q?
 
  A) .30
  B) .50
  C) .70
  D) 1.30