@misc{indiciae99c18b9e9680, title = {Permutation tests for detecting and estimating mixtures in task performance within groups.}, author = {Yungtai Lo and Steven Matthysse and Donald B Rubin and Philip S Holzman}, year = {2002}, doi = {10.1002/sim.1140}, url = {https://pubmed.ncbi.nlm.nih.gov/12111898/}, note = {Source identifier: 12111898} }