@article{Shtulman2018,
title = "Differentiating “could” from “should”: Developmental changes in modal cognition",
journal = "Journal of Experimental Child Psychology",
volume = "165",
number = "Supplement C",
pages = "161 - 182",
year = "2018",
note = "The early development of the normative mind",
issn = "0022-0965",
doi = "https://doi.org/10.1016/j.jecp.2017.05.012",
url = "http://www.sciencedirect.com/science/article/pii/S0022096517303429",
author = "Andrew Shtulman and Jonathan Phillips",
keywords = "Moral judgment, Possibility judgment, Social reasoning, Physical reasoning, Modality, Conceptual development"
}