{
  "name": "Incubation effect: who said what, and on what evidence",
  "desc": "Incubation effect claims, one row per claim: who made it, when, the kind of evidence (self-report, book, lab study, review, meta-analysis), how much of the source was read and the tag this site assigns. Quoted values: figures in the quoted_value column are quoted from Gilhooly (2016) and Zhou et al. (2019), both licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/), at the section or table in source_location. They are not covered by this site's CC BY 4.0 license; they remain under the CC BY 4.0 license of those papers, credited below, with this site's row wording as the only change. Rows for Sio & Ormerod (2009) and Baird et al. (2012) are this site's summaries of their abstracts and carry no figures. Rows for 1891 to 1926 summarize public-domain texts (Helmholtz d. 1894, Poincaré d. 1912, Halsted d. 1922, Wallas d. 1932). Derived values: figures in derived_value were computed by Feedback & Forgetting from the inputs named in formula. License for this site's selection, arrangement, notes and derived values: CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). read_level records how much of each source was read: full text, abstract only, or citation only. 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/creative-minds/incubation-effect/",
  "from": [
    "Full texts of Gilhooly (2016) and Zhou et al. (2019), both CC BY 4.0",
    "Abstracts of Sio & Ormerod (2009) and Baird et al. (2012)",
    "Public-domain texts: Helmholtz, Vorträge und Reden vol. 1 (1903); Poincaré, Science et méthode (1908) and the Halsted translation (1913); Wallas, The Art of Thought (1926)"
  ],
  "how": "Compiled by Feedback & Forgetting from the data listed",
  "data_by": [
    "Gilhooly, K. J. (2016). Incubation and intuition in creative problem solving. Frontiers in Psychology 7: 1076, doi:10.3389/fpsyg.2016.01076, section Delayed and Immediate Incubation Effects, CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/)",
    "Zhou, X., et al. (2019). Exposure to ideas, evaluation apprehension, and incubation intervals in collaborative idea generation. Frontiers in Psychology 10: 1459, doi:10.3389/fpsyg.2019.01459, Experiment 2 Table 1 and Experiment 3, CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/)"
  ]
}