Abstract:
The purposes of this research were to create computer assisted instruction (CAI) for work study in
relationships between man - machine and movement for man at practice the work, and to fmd out
the efficiency of the CAI as well as the learning achievement and attitude of the students towards
CAI. The instruments were consisted of construction of CAI for work study, pretest, formative test,
and post test. The research was carried out with 29 second year higher vocational students of the
technical industrial department; at Nakhonratchasima Technical College, Number of students
studying in all the academic study of the work. In semester 2/2552. and utilized to fmd out the
efficiency of CAI and the learning achievement. The research results revealed that the efficiency of
CAl was 82.49 / 82.36, According than criteria set at 80/80 T-test for the learning achievement was
significantly at the level of .01.. As the results, the computer assisted instruction (CAI) was good to
be used for self study in instructional subject of work study.