The linguistic intelligence of seventh-grade students at SMPN 1 Ampek Angkek has not developed optimally, as indicated by difficulties in expressing opinions orally, participating in discussions, and organizing ideas coherently in writing. This study aimed to examine the effect of the Think Talk Write (TTW) learning model on students’ linguistic intelligence. A quantitative approach with a quasi-experimental design and a nonequivalent control group design was employed. The participants were students of class VII.1 as the experimental group and class VII.5 as the control group. Data were collected using an essay test on linguistic intelligence that had been validated and tested for reliability. Pretest and posttest data were analyzed using the Independent Samples t-test. The results revealed a significant difference between the experimental and control groups, with a significance value of 0.048 (p < 0.05). Thus, the null hypothesis was rejected and the alternative hypothesis was accepted. The findings indicate that the Think Talk Write (TTW) learning model has a significant positive effect on the linguistic intelligence of seventh-grade students at SMPN 1 Ampek Angkek. Therefore, TTW can be used as an effective learning model to improve students’ language skills and participation in classroom learning.
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