Confirmation, Correction and Improvement for Outlier Validation using Dummy Variables

Arzdar KİRACİ

Makale detayları

Confirmation, Correction and Improvement for Outlier Validation using Dummy Variables

Yazarlar:

Arzdar KİRACİ

Yayıncı:

Econometric Research Association

Ana Başlıklar:

Sosyoloji & antropoloji | Yönetim

Dergi:

International Econometric Review 2013 Vol.5 Issue 2, pp.43-52

Belge Tipi:

Makale

Yayın Tarihi:

8/2013

Belge Dili:

Türkçe

Document ID (Org No.):

2000717694

Sıklık:

Üç Aylık

eISSN:

1308-8815

pISSN:

1308-8793

Özet:

 

Dummy variables can be used to detect, validate and measure the impact of outliers in data. This paper uses a model to evaluate the effectiveness of dummy variables in detecting     outliers. While generally confirming some findings in the literature, the model refutes the presumption that the t˗statistic or the F-incremental statistic is enough to validate     an observation as an outlier. In order to rectify this fallacy, this paper recommends an easily-calculable robust standardized residual statistic that is more compatible with the     definition of outliers.  The robust standardized residual statistic suggested herein is still used in many robust regression methods and is more effective than the t-statistic or the F-incremental statistic   in validating outliers with dummy variables. The results of this study suggest some practical recommendations for dealing with outliers and improvements in maintaining the integrity   of data. We recommend all previous studies using this statistics be revised in light of the findings presented in this paper.

Makale detayları

Confirmation, Correction and Improvement for Outlier Validation using Dummy Variables

Yazarlar: Arzdar KİRACİ

Yayıncı: Econometric Research Association

Ana Başlıklar: Sosyoloji & antropoloji | Yönetim

Dergi: International Econometric Review 2013 Vol.5 Issue 2, pp.43-52

Belge Tipi: Makale

Yayın Tarihi: 8/2013

Belge Dili: Türkçe

Document ID (Org No.): 2000717694

Sıklık: Üç Aylık

eISSN: 1308-8815

pISSN: 1308-8793

Sayı

Yazarlar:

Arzdar KİRACİ

Yayıncı:

Econometric Research Association

Ana Başlıklar:

Sosyoloji & antropoloji | Yönetim

Dergi:

International Econometric Review 2013 Vol.5 Issue 2, pp.43-52

Belge Tipi:

Makale

Yayın Tarihi:

8/2013

Belge Dili:

Türkçe

Document ID (Org No.):

2000717694

Sıklık:

Üç Aylık

eISSN:

1308-8815

pISSN:

1308-8793