Which of the following statements are correct?

(A) Internal reliability is described as the consistency of a measure taken at two different points of time.

(B) A distribution is random walk if it has a mean of 0 and variance of 1.

(C) Increase and decrease in scores measured overtime that produce a variance of less than 50% is reliable.

(D) Normal distribution cannot be applied to real life situations.

(E) Factor Analysis supersedes multiple discriminant analysis.

Choose the most appropriate answer from the options given below: