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| Tỷ lệ Giá trị Nội dung× | Xây dựng Thang đo Likert× | |
|---|---|---|
| Lĩnh vực | Trắc lượng tâm lý | Trắc lượng tâm lý |
| Họ | Process / pipeline | Process / pipeline |
| Năm ra đời≠ | 1975 | 1932 |
| Người khởi xướng≠ | Charles H. Lawshe | Rensis Likert |
| Loại≠ | Expert panel content validity assessment | Summated rating scale methodology |
| Công trình gốc≠ | Lawshe, C. H. (1975). A quantitative approach to content validity. Personnel Psychology, 28(4), 563-575. link ↗ | Likert, R. (1932). A technique for the measurement of attitudes. Archives of Psychology, 22(140), 1-55. link ↗ |
| Tên gọi khác≠ | CVR, Content validity index, Expert judgment content validity, Lawshe CVR | Likert summated rating scale, Summated rating scale construction |
| Liên quan≠ | 4 | 5 |
| Tóm tắt≠ | The Content Validity Ratio (CVR) is a quantitative method developed by Charles Lawshe in 1975 for evaluating the extent to which items in a measurement instrument are relevant and representative of a target construct. The method aggregates expert panel judgments into a single validity coefficient for each item, enabling researchers to identify and retain only those items deemed essential by domain experts. CVR provides objective support for content validity claims during scale development. | Likert scale construction is a systematic methodology for developing attitude measurement instruments using summated rating scales. Introduced by Rensis Likert in 1932, it enables researchers to quantify latent constructs such as attitudes, beliefs, and psychological states by aggregating responses across multiple items. The method remains foundational to quantitative social and health sciences research. |
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