@misc{indiciae8752f4deed1a,
  title = {A free-choice version of the EPPS.},
  author = {R I Lanyon},
  year = {1966},
  doi = {10.1002/1097-4679(196604)22:2<202::aid-jclp2270220225>3.0.co;2-2},
  url = {https://pubmed.ncbi.nlm.nih.gov/5937049/},
  note = {Source identifier: 5937049}
}