When the middle verb phrase is removed from an English double-embedded sentence, the remainder of the sentence is read faster in spite of the ungrammaticality. It has been shown that this "missing-VP effect" is reversed in German and Dutch. The current study demonstrates that the same cross-linguistic difference holds for sentences judgments: Native speakers consider English double-embedded sentences more comprehensible and acceptable when the middle verb phrase is removed, whereas the same is not the case in Dutch. This interaction between language and grammaticality also appears in a within-subjects replication that tests Dutch native speakers in both languages. These results, in combination with earlier findings, give rise to a hybrid account according to which the missing-VP effect is caused by properties of the language as well as properties of working memory.

English sentences with double center-embedded clauses are read faster when they are made ungrammatical by removing one of the required verb phrases. This phenomenon is known as the missing-VP effect. German and Dutch speakers do not experience the missing-VP effect when reading their native language, but they do when reading English as a second language (L2). We investigate whether the missing-VP effect when reading L2 English occurs in native Dutch speakers because their knowledge of English is similar to that of native English speakers (the high exposure account), or because of the difficulty of L2 reading (the low proficiency account). In an eye-tracking study, we compare the size of the missing-VP effect between native Dutch and native English participants, and across native Dutch participants with varying L2 English proficiency and exposure. Results provide evidence for both accounts, suggesting that both native-like knowledge of English and L2 reading difficulty play a role.

When the middle verb phrase is removed from an English double-embedded sentence, the remainder of the sentence is read faster in spite of the ungrammaticality. It has been shown that this "missing-VP effect" is reversed in German and Dutch. The current study demonstrates that the same cross-linguistic difference holds for sentences judgments: Native speakers consider English double-embedded sentences more comprehensible and acceptable when the middle verb phrase is removed, whereas the same is not the case in Dutch. This interaction between language and grammaticality also appears in a within-subjects replication that tests Dutch native speakers in both languages. These results, in combination with earlier findings, give rise to a hybrid account according to which the missing-VP effect is caused by properties of the language as well as properties of working memory.

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English sentences with double center-embedded clauses are read faster when they are made ungrammatical by removing one of the required verb phrases. This phenomenon is known as the missing-VP effect. German and Dutch speakers do not experience the missing-VP effect when reading their native language, but they do when reading English as a second language (L2). We investigate whether the missing-VP effect when reading L2 English occurs in native Dutch speakers because their knowledge of English is similar to that of native English speakers, or because of the difficulty of L2 reading. In an eye-tracking study, we compare the size of the missing-VP effect between native Dutch and native English participants, and across native Dutch participants with varying L2 English proficiency and exposure. Results provide evidence for both accounts, suggesting that both native-like knowledge of English and L2 reading difficulty play a role.