It is conducted annually by Niets to measures students' basic knowledge in five key subjects -- mathematics, English, Thai language, social studies and general sciences. Overall, average scores for over 637,000 Mathayom 3 students tested nationwide this year in all the five subjects were under 50%, with mathematics and English remaining students' least favourite subjects with average scores of 29.31% and 31.8%, respectively, Niets said. The average scores for Thai language, social studies and English language are higher than last year's, Niets said. Students earned an average of 46.68% in social studies, 41.22% in general science, 40.47% in mathematics and 34.59% in English language. Likewise, the test results of both levels of students and in every subject showed students in extra large schools earned the highest average scores, students of the schools in the cities earned higher average scores than those who came from the schools in remote areas.

Source: Bangkok Post March 26, 2017 01:07 UTC