This study investigates the causal impact of language environment components specifically Visual Exposure Intensity and Interactive Exposure Intensity on the sociolinguistic competence of students at TMI (Tarbiyatul Mu'allimien al-Islamiyah) Al-Amien Prenduan Islamic Boarding School. Utilizing a quantitative Ex-Post Facto design with Path Analysis on 310 respondents, the research deconstructs the "language environment" into visual constructs (linguistic landscape) and interactive constructs (social pressure). The findings reveal a fundamental asymmetry: Visual Exposure Intensity showed no significant effect on sociolinguistic competence (p > 0.05), challenging the assumed efficacy of passive linguistic landscapes. Conversely, Interactive Exposure Intensity emerged as a significant determinant (p < 0.05), confirming that sociolinguistic nuances are acquired through negotiation of meaning and social friction rather than passive observation. However, the low determination coefficient (R² = 9.2%) suggests that unmeasured internal factors (such as motivation and aptitude) play a dominant role alongside environmental factors. The study concludes that effective language environment engineering must prioritize active social interaction over static visual displays.
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