An optimum number of overlearning opportunities is approximately % of the number of trials required for acquisition of the behavior. a. 50% b. 25% c. 33% d. 75%

a. 50%

Explanation:

Overlearning is a condition in which an individual undergoes repeated practice after which the main objective of the practice has already be achieved. The probability of  acquistion of the behavior in the practice is either the individual was successful after  learning it once again or not successful . In both cases, the number of the required outcome is 1 and the number of all possible outcome is 2.

∴ The sample space can  be given as:

Sample Space (S) =

Sample Space (S)  =

                               = 0.5;  (in percentage, we have)

                              = 50%