Evaluation method for carrying out crowd environment risk perception standardized measurement based on Likt scale

Abstract

The invention relates to an evaluation method for crowd environment risk perception standardized measurement based on a Likt scale. According to the method, a Likt five-component table is adopted; designing a risk perception basic questionnaire; the method comprises the following steps: acquiring basic data of crowds for risk perception from five dimensions through a plurality of questions, performing reliability check on questionnaires, performing factor analysis by utilizing a maximum likelihood method, performing factor rotation, performing dimension reduction processing on all risk perception questions involved in the questionnaires to obtain path coefficients among indexes, and giving out fitting parameters; further correcting the preliminarily obtained model to obtain corrected modelfitting parameters and path coefficients; and finally, regression analysis is performed on each risk perception factor, and a basic model after risk acceptance perception factor optimization is given. According to the evaluation method, a targeted crowd risk perception measurement template is designed for perception dimensions of different types of risks, and a set of standardized evaluation toolis formed.

Description

technical field [0001] The invention relates to the technical field of environmental risk assessment and management, in particular to an assessment method for standardized measurement of crowd environmental risk perception based on Likert scales. Background technique [0002] Risk can be expressed as a function of the probability of event occurrence and its consequences, and its most important feature is uncertainty. Risk perception refers to an individual's subjective understanding and attitude towards objectively existing environmental risks, emphasizing the impact of individual experience gained from intuitive judgment and subjective feelings on individual cognition, and is an important indicator of public psychological panic. [0003] Foreign research on risk perception originated in the 1960s. The rapid development of the chemical industry and nuclear power has sparked intense public debate, and scientists have begun to pay attention to public attitudes towards the env...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies in the prior art, the present invention provides an evaluation method for standardized measurement of crowd environmental risk perception based on the Likert scale, which can overcome the shortcomings of the existing risk perception evaluation indicators that are not uniform, messy, and difficult to quantify. Let the respondents directly evaluate the multiple risk characteristics of each risk event, and at the same time use the Likert standardized scale combined with the psychological paradigm measurement method to seek a unified and standardized risk perception evaluation index system and questionnaire template, aiming at different types of risks. Perceived dimensions of risk, design a targeted measurement template for risk perception of the population, and form a set of standardized assessment tools

Images