求翻译：在第四章中，运用因子分析法就选取的两类共16家上市公司2011年度财务数据进行了财务预警评分，并对财务预警结果做出比较分析和有效性实证。是什么意思？

In the fourth chapter, the use of factor analysis selected two types of a total of 16 listed companies in 2011 annual financial data for the financial early warning score, make a comparative analysis and Effectiveness of the financial early warning results.

In Chapter 4, using factor analysis on the selection of two types of 16 listed companies 2011 annual financial data to the financial Warning Score, and the financial warning results compared to the empirical analysis and validity.

In the fourth chapter, has carried on financial early warning grading using the factor analytic method on the selection two kind of altogether 16 to be listed 2011 year finance data, and makes the comparative analysis and the valid real diagnosis to the financial early warning result.

In the fourth chapter, using two classes of factor analysis method to select all 16 2011 annual financial data for the listed company finance early warning score and on the effectiveness of financial early warning of results comparative analysis and empirical.

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