id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
dad-10671	Rohlfing, Katharina J. 	Exploring "Associative Talk": When German Mothers Instruct Their Two Year Olds about Spatial Tasks	2011	18	.pdf	application/pdf	9849	515	56	Children's task performance correlated significantly with reported productive spatial lexicon (r = .52, df = 19, p < .03) but not with the reported receptive spatial lexicon (r = .28), suggesting that a more advanced reported productive spatial lexicon helped children to solve the task successfully. The relations ON and UNDER were chosen because of the different level of knowledge children demonstrate in understanding them: Whereas the preposition ON is reported to be understood very early, the understanding of UNDER is relatively poor at the age of 20 to 24 months (for example, Clark, 1973; Rohlfing, 2005).	cache/dad-10671.pdf	txt/dad-10671.txt