Abstract
Developmental psycholinguistic investigation based on the Chomsky's generative theory (1957) has two purposes:
1. to record and analyse the utterances by child for the purpose of clarifying his competence.
2. to present the generative grammar adequate to competence.
Focusing on the No.2 issue, Schlesinger (1971a, 1971b) presented a unique grammar, the Grammar of Realization Rules. In order to investigate the Schlesinger's grammar, especially his “position rules of agent, action, and direct object”, two studies were conducted. The first study dealt with the first phase word combinations by one Japanese boy aged 2;1-2;8. Main results were as follows.
The general trend of word order did not always support Schlesinger's grammar. But in some verbs the word order had its individual order.
In a second study the utterances of five Japanese children aged between 2;5-3;9 were recorded and analysed. Main results were as follows.
The total results of five children supported Schlesinger's grammar. But the nesults of each child did not always support Schlesinger's grammar.