Those studies that have build tools to survey behavioural alcohol intake of students by bringing the tools created to examine valuation experts, the consistency between objectives or content questions (IOC: Index of item Objective Congruence), or the index of the appropriate experts evaluate the content of the message to each question can be measured directly with a purpose or not. By the scoring criteria. As follows:If the question on direct measurement purpose + 1 point.If you're not sure whether the question on direct measurements of the purpose or not 0 points.If the question does not directly measure the objective-1 score.Afterward, bringing the score of every expert estimated original consistency analysis of questions with the aim to find the average value, using the formula as follows:NRIOC R = The total score comments of experts. N =, amounting to an expert.
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