{
  "name": "Study File: the 2016 online vocabulary size test",
  "desc": "Study File card for the 2016 online vocabulary size test by Brysbaert, Stevens, Mandera and Keuleers, one row per card field; the source column names where each value comes from. Values rest on the full text of the paper (CC BY 4.0), a Europe PMC search for replications and Crossref records. License for this site's selection and wording: CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Checked 2026-11-06.",
  "lic": "CC BY 4.0",
  "lic_url": "https://creativecommons.org/licenses/by/4.0/",
  "by": "Feedback & Forgetting",
  "url": "https://feedbackandforgetting.com/language-minds/vocabulary-size/",
  "from": [
    "Brysbaert, Stevens, Mandera & Keuleers (2016), Frontiers in Psychology, doi:10.3389/fpsyg.2016.01116 (CC BY 4.0)",
    "Crossref records and update search"
  ],
  "how": "Compiled by Feedback & Forgetting from the data listed",
  "data_by": [
    "Brysbaert, M., Stevens, M., Mandera, P., & Keuleers, E. (2016). How many words do we know? Practical estimates of vocabulary size dependent on word definition, the degree of language input and the participant's age. Frontiers in Psychology 7: 1116, doi:10.3389/fpsyg.2016.01116, CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/)"
  ]
}