Research Instruments
The research instruments in this study were the developed Computer assisted
Instruction which was constructed for Mathayom Suksa 1 students
who were studying Fundamental English (EN 211 01). The behavioral objectives
were to understand the meaning of vocabulary, to pronounce the vocabulary
correctly, and to be able to use vocabulary in appropriate situations. The CAI
consisted of 10 lessons and 20 exercises,10 lesson plans, one-group pre-test
and post-test, and the evaluation forms for CAI experts and English teaching
experts.