Does the benefit of testing depend on lag, and if so, why? Evaluating the elaborative retrieval hypothesis
Memory & Cognition (2015) - Comment
pubmed: 25344296  doi: 10.3758/s13421-014-0477-z  issn: 0090-502x  issn: 1532-5946 

Katherine A. Rawson, Kalif E. Vaughn, Shana K. Carpenter