@misc{indiciae6614b9c6635e,
  title = {Techniques for rapid quantitative assessment of activity levels in small-group tutorials.},
  author = {J F Prinz and H Y Yip and G L Tipoe and P W Lucas and M Lenstrup},
  year = {1998},
  doi = {10.1046/j.1365-2923.1998.00224.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/9743807/},
  note = {Source identifier: 9743807}
}