{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,4]],"date-time":"2026-08-04T01:48:25Z","timestamp":1785808105823,"version":"3.56.0"},"reference-count":0,"publisher":"Oxford University Press (OUP)","issue":"6","license":[{"start":{"date-parts":[[2000,11,1]],"date-time":"2000-11-01T00:00:00Z","timestamp":973036800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/pages\/standard-publication-reuse-rights"},{"start":{"date-parts":[[2003,1,28]],"date-time":"2003-01-28T00:00:00Z","timestamp":1043712000000},"content-version":"vor","delay-in-days":818,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["srcd.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2000,11,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>Two-year-olds' (N= 153) knowledge of solidity was tested in four search tasks adapted from infant looking-time experiments. In Experiment 1, 2-year-olds failed to search in the correct location for a falling ball after a hidden shelf that blocked its trajectory had been inserted in the apparatus. Experiment 2 extended this finding by showing that 2-year-olds failed to take into account the effects of either removing or inserting a shelf in their search for a toy dropped behind a screen. Experiment 3 examined sensitivity to the constraint provided by a solid barrier on horizontal motion. In all three experiments, 2-year-old children searched initially at the location where they saw the object during familiarization. Experiment 4, using multiple test trials but no familiarization to a pretest location, also showed that 2-year-olds failed to take the presence or absence of a barrier into account when planning where to search for a toy they had seen dropped behind a screen. In all of these studies, 2-year-olds showed no evidence of representing solidity and support constraints on the trajectories of falling objects. Experiments 1 and 3 also included 2H-year-olds (N= 31), who succeeded on these search tasks. The implications of the poor performance of 2-year-olds, in the face of success by very young infants on looking-time measures of sensitivity to similar constraints on object motion, are discussed.<\/jats:p>","DOI":"10.1111\/1467-8624.00247","type":"journal-article","created":{"date-parts":[[2003,3,11]],"date-time":"2003-03-11T04:15:09Z","timestamp":1047356109000},"page":"1540-1554","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":105,"title":["Predicting the Outcomes of Physical Events: Two-Year-Olds Fail to Reveal Knowledge of Solidity and Support"],"prefix":"10.1093","volume":"71","author":[{"given":"Bruce","family":"Hood","sequence":"first","affiliation":[{"name":"Department of Experimental Psychology, University of Bristol"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Susan","family":"Carey","sequence":"additional","affiliation":[{"name":"New York University"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sandeep","family":"Prasada","sequence":"additional","affiliation":[{"name":"Dartmouth College"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"286","published-online":{"date-parts":[[2003,1,28]]},"container-title":["Child Development"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1111%2F1467-8624.00247","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/academic.oup.com\/chidev\/article-pdf\/71\/6\/1540\/65008912\/1467-8624.00247.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"syndication"},{"URL":"https:\/\/academic.oup.com\/chidev\/article-pdf\/71\/6\/1540\/65008912\/1467-8624.00247.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,1,9]],"date-time":"2026-01-09T22:07:30Z","timestamp":1767996450000},"score":1,"resource":{"primary":{"URL":"https:\/\/academic.oup.com\/chidev\/article\/71\/6\/1540\/8284087"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2000,11,1]]},"references-count":0,"journal-issue":{"issue":"6","published-online":{"date-parts":[[2003,1,28]]},"published-print":{"date-parts":[[2000,11,1]]}},"URL":"https:\/\/doi.org\/10.1111\/1467-8624.00247","relation":{},"ISSN":["0009-3920","1467-8624"],"issn-type":[{"value":"0009-3920","type":"print"},{"value":"1467-8624","type":"electronic"}],"subject":[],"published-other":{"date-parts":[[2000,11]]},"published":{"date-parts":[[2000,11,1]]},"assertion":[{"value":"2003-01-28","order":3,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}