Which of the following is true regarding overlearning of knowledge?

Overlearning refers to the process of continuing to practice or study material beyond the point of initial mastery. This practice can lead to enhanced retention and transfer of knowledge, allowing it to become more automated or skill-like in nature. When knowledge is applied frequently, overlearning helps solidify that information in memory, transitioning it from a cognitive process to a more fluid and instinctual use. This is particularly beneficial in situations where quick recall or application of information is crucial.

Thus, the statement about overlearning sometimes occurring when frequently used knowledge takes on the properties of a skill is accurate. The essence of overlearning is that it transforms knowledge into a more automatic response, which can aid in performing tasks under pressure or in fast-paced environments.