Final Answer:
(Evidence for the dual route model) This supports the prediction that correct regulars and overregularization errors are: both produced as soon as the child learns the regular past tense rule.
Step-by-step explanation:
The dual route model of language acquisition proposes that language processing involves two routes: a rule-based system for regular forms and a memory-based system for irregular forms. This model predicts that upon learning the regular past tense rule, children will correctly apply it to regular verbs while also making overregularization errors, where irregular verbs are mistakenly conjugated as regular ones.
This prediction aligns with empirical evidence demonstrating that as children acquire language, they start forming the regular past tense correctly ('walked,' 'jumped') while occasionally applying the rule to irregular verbs ('goed' instead of 'went'). This phenomenon occurs because the rule-based system initially dominates language production before the memory-based system strengthens with more exposure and experience.
Thus, the coexistence of both correct regular forms and overregularization errors supports the idea that these linguistic processes emerge concurrently during language development. In summary, the dual route model's prediction of the simultaneous production of correct regulars and overregularization errors corresponds to observations in language acquisition studies.
Correct answer: "both produced as soon as the child learns the regular past tense rule"