The testing effect refers to the higher probability of being able to recall an item when actively retrieving the item from memory, rather than carrying out repetitive studies of the item. However, in order for this effect to be demonstrated, the testing must yield a medium to high rate of retrieval success. If the test trials are so difficult that no items are recalled or if the correct answers are not given when being tested on the subject, then minimal or no learning will occur.
See list of all cognitive psychology concepts.
See lecture series: Introduction to Cognitive Psychology, R. A. Kasschau, (26 lectures).