| 摘要: | Nutrition educators require valid and reliable test instrument for evaluation of educational effort and for research purpose. This article provides on overview of the validity and reliability of test instrument. The nature and interpretation of content, criterion, and construct validity was described. The measurement of reliability by test-retest method, equivalent-forms method, internal-consistency method, and scorer method was explained. The author urges that test developers, users, and interpreters recognize the characteristics of good instrument. |
