In language acquisition studies, there is a recurring debate regarding how to account for non-target-consistent utterances produced by young children. Anderssen and Westergaard (Lingua 120:2569–2588, 2010) study the acquisition of Norwegian possessives, which may be pre- or postnominal, and find that children overuse prenominal possessives, even though they are considerably less frequent than postnominal ones in the input. The current study investigates Spanish possessive structures, which may also appear with two word orders, and finds that postnominal possessives are occasionally overused by young children, even though they are extremely low in frequency (3%). In this article, we discuss two possible explanations for the non-target-consistent behavior of Norwegian and Spanish children, related to economy of syntactic movement and the nature of the possessives themselves in terms of strong/weak pronouns or clitics.

在语言习得研究中，关于如何解释幼儿产生的目标不一致的话语的争论不断出现。 Anderssen 和 Westergaard (Lingua 120:2569–2588, 2010) 研究了挪威语所有格的习得，可能是名词前或名词后，发现儿童过度使用名词前所有格，尽管它们在输入中的频率远低于名词后所有格。目前的研究调查了西班牙语所有格结构，这些结构也可能以两个词序出现，并发现后名词性所有格偶尔会被幼儿过度使用，尽管它们的频率极低（3%）。在本文中，我们讨论了挪威和西班牙儿童目标不一致行为的两种可能的解释，与句法运动的经济性以及强/弱代词或附着词的所有格本身的性质有关。