The interim test effect: testing prior material can facilitate the learning of new material
Psychonomic Bulletin & Review (2011) - Comment
pubmed: 21796496  doi: 10.3758/s13423-011-0140-7  issn: 1531-5320  issn: 1069-9384 

Kathryn T. Wissman, Katherine A. Rawson, Mary A. Pyc