Comparing two independent groups: A test based on a one-step M-estimator and bootstrap-t
BRITISH JOURNAL OF MATHEMATICAL & STATISTICAL PSYCHOLOGY, cilt.66, sa.2, ss.322-337, 2013 (SCI-Expanded, SSCI, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 66 Sayı: 2
- Basım Tarihi: 2013
- Doi Numarası: 10.1111/j.2044-8317.2012.02053.x
- Dergi Adı: BRITISH JOURNAL OF MATHEMATICAL & STATISTICAL PSYCHOLOGY
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Social Sciences Citation Index (SSCI), Scopus
- Sayfa Sayıları: ss.322-337
- Dokuz Eylül Üniversitesi Adresli: Hayır
Özet
A new test is proposed for the problem of comparing two independent groups in terms of some measure of location. The proposed test () uses a one-step M-estimator and a bootstrap-t method with the procedure proposed by ozdemir and Kurt (2006). Eight methods were compared in terms of actual Type I error and power when the underlying distributions differ in skewness and kurtosis under heterogeneity of variances. For the 21 theoretical distributions, the Yuen test with the bootstrap-t method was the most favourable, followed by test. For the five real data sets, the proposed test and percentile bootstrap method with the one-step M-estimator performed best.