Answer:
This effect is due to the differences among the levels of processing.
Explanation:
The depth of processing involved in memory, shaped the model by Craik and Lockhart, 1972, stating that the deeper information is processed, the longer a memory trace will last, this is called the levels of processing, defining depth as "the meaningfulness extracted from the stimulus rather than in terms of the number of analyses performed upon it.” by Craik (1973).