@misc{indiciaecfc633725a17, title = {One-trial learning with control of item-difficulty.}, author = {S A Pizzurro and J Van Laer}, year = {1968}, doi = {10.1080/14640746808400143}, url = {https://pubmed.ncbi.nlm.nih.gov/5653418/}, note = {Source identifier: 5653418} }