Centro de Documentacion de Fundación MAPFRE

MAP20071501086

Simultaneous analysis of individual and aggregate responses in psychometric data using multilevel modeling / Ian H. Langford... [et al.]

Sumario: Psychometric data on risk perceptions are often collected using the method developed by Slovic, Fischhoff, and Lichtenstein, where an array of risk issues are evaluated with respect to a number of risk characteristics, such as how dreadful, catastrophic or involuntary exposure to each risk is. The analysis of these data has often been carried out at an aggregate level, where mean scores for all respondents are compared between individuals, and individual analyses have also been performed for single risk issues. This paper presents a new methodological approach using a technique called multilevel modelling for analysing individual and aggregated responses simultaneously, to produce unconditional and umbiased results at both individual and aggregate levels of the data.

En: Risk analysis : an international journal. - New York and London : Society for Risk Analysis. - Vol. 19, nº 4, Agosto, 1999 ; p. 675-683

1. Riesgos . 2. Percepción del riesgo . 3. Modelo psicométrico . 4. Evaluación de riesgos . 5. Métodos de análisis . I. Langford, Ian H. . II. Título.