The analysis and the descriptive statistics of the test scores from the word stress assignment task showed that, in general, the mean score is 16.84. The highest score is 26, while the lowest score is 9, and the SD value is 3.35. In this regard, it was found that Thai learners had a difficulty with pronouncing five-syllable words most, and two-syllable words least. Based on these results, given that the words covered in the test were taken from the textbooks they must study in the classroom, it is clear that the relatively low mean score of 16.84 demonstrates that their performance on word stress assignment test is far from satisfactory. As for the personal data elicited by the first part of the test, the number and the percentage of the participants are presented in Table 1. Further, the results on the investigation of the relationship between test scores and the variables were individually reported as follows