The study of the acquisition of IP and of the Determiner Phrase (DP) can help determine whether or not Functional Parameterization has taken place in the child’s syntax—consequently, affecting notions previously put forward in Chapter 2 concerning language-specific awareness (viz., The Single System Hypothesis (SSH)). Under the current Minimalist Program, formal syntax provides a mechanism for ‘Checking’ morphological features within specific functional (local) domains,
triggering movement operations either at ‘post-Spell-out’ (covert) LF, or ‘pre-Spell-out’ (overt) PF levels of representation