Are our memories strengthened by sleep, and if so, what can teachers do?
Retrieval practice can impair retention of competing information that is not episodically or semantically related to the retrieved item (Liu + Ranganath, 2021).
What is retrieval-induced forgetting?
Put simply, retrieval-induced forgetting is the phenomenon in which remembering causes forgetting of other information. Conscious remembering is retrieved through explicit memory, but actual forgetting occurs in our implicit (subconscious) memory.
Retrieval practice can be costly!
In October 2022, I published a summary of some research which suggested that retrieval practice is costly for some students.