@misc{indiciae119a86ff7c31,
  title = {Test anxiety and feedback in programmed instruction.},
  author = {P L Campeau},
  year = {1968},
  doi = {10.1037/h0020049},
  url = {https://pubmed.ncbi.nlm.nih.gov/5662683/},
  note = {Source identifier: 5662683}
}