التفاصيل البيبلوغرافية
| العنوان: |
On the Upward Bias of the Dissimilarity Index and Its Corrections. |
| المؤلفون: |
Mazza, Angelo, Punzo, Antonio |
| المصدر: |
Sociological Methods & Research; Feb2015, Vol. 44 Issue 1, p80-107, 28p |
| مصطلحات موضوعية: |
BIAS correction (Topology), STATISTICAL bootstrapping, SEGREGATION, DEMOGRAPHIC surveys, MATHEMATICAL proofs |
| مستخلص: |
The dissimilarity index of Duncan and Duncan is widely used in a broad range of contexts to assess the overall extent of segregation in the allocation of two groups in two or more units. Its sensitivity to random allocation implies an upward bias with respect to the unknown amount of systematic segregation. In this article, following a multinomial framework based on the assumption that individuals allocate themselves independently and that unit sizes are not fixed, we provide (1) a mathematical proof of the nonnegativity of the bias, (2) an analytic way of obtaining the same results of a recent bootstrap-based bias correction but without using resampling, and (3) a new bias correction that outperforms, in terms of both bias and mean square error, those based on grouped jackknife, bootstrap, and double bootstrap. [ABSTRACT FROM PUBLISHER] |
|
Copyright of Sociological Methods & Research is the property of Sage Publications Inc. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) |
| قاعدة البيانات: |
Complementary Index |
