Young children protest against the incorrect use of novel words: Toward a normative pragmatic account on language acquisition

Children are eager to take credit for prosocial acts, and cost affects this tendency

We report two experiments on children's tendency to enhance their reputations through communicative acts. In the experiments, 4-year-olds (N = 120) had the opportunity to inform a social partner that they had helped him in his absence. In a first experiment, we pitted a prosocial act ("Let's help clean up for Doggie!") against an instrumental act ("Let's move these out of our way"). Children in the prosocial condition were quicker to inform their partner of the act and more likely to protest when another individual was given credit for it. In a second experiment, we replicated the prosocial condition but with a new manipulation: high-cost versus low-cost helping. We manipulated both the language surrounding cost (i.e., "This will be pretty tough to clean up" vs. "It will be really easy to clean this up") and how difficult the task itself was. As predicted, children in the high-cost condition were quicker to inform their partner of the act and more likely to take back credit for it. These results suggest that even 4-year-old children make active attempts to elicit positive reputational judgments for their prosocial acts, with cost as a moderating factor.

Children Treat Grammatical Errors Differently for Native and Non-Native Speakers

Both children and adults demonstrate biases against non-native speakers. However, in some situations, adults act more generously towards non-native speakers than towards native speakers. In particular, adults judge errors from non-native speakers less harshly, presumably because they expect such errors. In the present study, we asked whether 5-6-year-old children place less weight on errors from speakers with a foreign accent. In Experiment 1, 5- and 6-year-old children (N = 80) listened to pairs of either native or foreign-accented speakers (between-subjects) label objects. For native speaker pairings, children preferred information provided by grammatical speakers over information from speakers who made subject-verb agreement errors. In contrast, children chose between foreign-accented speakers at chance. In Experiment 2 (N = 40), children preferred information from grammatical foreign-accented speakers over information from foreign-accented speakers who produced word-order violations. These findings constitute the first demonstration that children treat speech errors differently based on a speaker’s language background.