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Surin samples used in research as a student. The study of students in vocational college students from the province of Surin, Surin, level 1-3 years professional certificate and diploma level students and higher. Year 1-2 years of study 329 at number 2557 (2014) from open table, calculate the size of the sample group of khret Regency and Morgan (R. V. D. W. & Morgan Krejcie. 1970:308). to find the proportion of the sample by the method of comparing each class cross-multiplication to a simple random sample by way of lottery.

Surin samples used in research as a student. Students enrolled in the College of Surin. Surin Since students of Diploma Students 1-3 and 1-2 year diploma in 2557 from the release of 329 square calculated sample size of Krejcie and Morgan (. RV Krejcie & DW Morgan. 1970: 308), then a proportion of the sample by means of the rule of each grade level. To take a simple random by the lottery.

Surin, the sample is a student. The students in Vocational Colleges of Surin province. Since vocational student at year 1-3.Years 1-2 academic year 2557 number 329 people. The turn table calculating sample size of krejci and Morgan (R.V. Krejcie & D. W. Morgan. 1970: 308) was used for the proportion of the sample by way of comparing the rule of three each class level In order to random simple models by means of the lottery?