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| Construcció d'escales Likert× | Valor de Validesa de Contingut× | |
|---|---|---|
| Camp | Psicometria | Psicometria |
| Família | Process / pipeline | Process / pipeline |
| Any d'origen≠ | 1932 | 1975 |
| Autor original≠ | Rensis Likert | Charles H. Lawshe |
| Tipus≠ | Summated rating scale methodology | Expert panel content validity assessment |
| Font seminal≠ | Likert, R. (1932). A technique for the measurement of attitudes. Archives of Psychology, 22(140), 1-55. link ↗ | Lawshe, C. H. (1975). A quantitative approach to content validity. Personnel Psychology, 28(4), 563-575. link ↗ |
| Àlies≠ | Likert summated rating scale, Summated rating scale construction | CVR, Content validity index, Expert judgment content validity, Lawshe CVR |
| Relacionats≠ | 5 | 4 |
| Resum≠ | 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. | 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. |
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