I. Introduction II. Adjectives and Relative Clauses 2.1 Head Parameter and Modification 2.2 Pre-modification vs. Post-modification 2.3 Restrictive vs. Non-restrictive Relative Clauses 2.4 Adjectival vs. Relative Reduction III. Method 3.1 Participants 3.2 Materials and Procedure 3.3. Results and Discussion IV. Conclusion Works Cited