We propose a formal method to test stationarity for spatial point processes. The proposed test statistic is based on the integrated squared deviations of observed counts of events from their means estimated under stationarity. We show that the resulting test statistic converges in distribution to a functional of a two-dimensional Brownian motion. To conduct the test, we compare the calculated s...

This paper proposes a new stationarity test based on the KPSS test with less size distortion. We extend the boundary rule proposed by Sul, Phillips and Choi (2005) to the autoregressive spectral density estimator and parametrically estimate the long-run variance. We also derive the finite sample bias of the numerator of the test statistic up to the 1/T order and propose a correction to the bias...

BACKGROUND The positive health and wellbeing effects of social support have been consistently demonstrated in the literature since the late 1970s. However, a better understanding of the effects of age and sex is required. METHOD We examined the factor structure and reliability of Kessler's Perceived Social Support (KPSS) measure in a community-based sample that comprised younger and older adu...

The interpretation of the series recorded by Laser Interferometer Gravitational Wave Observatory is a very important issue. Here we apply two methods widely used in study nonlinear dynamical systems, namely, calculation Takens’ dimension embedding and spectrum Kolmogorov’s complexity, to event GW150914. An increase former drop latter are observed, which consistent with appearance gravitational ...

KPSS kursuna devam eden öğretmen adaylarının epistemolojik inançları ile ölçme değerlendirme okuryazarlıkları arasındaki ilişkilerin incelenmesi amacını taşıyan bu çalışma nicel araştırma yöntemlerinden biri olan ilişkisel tarama modelinde tasarlanmıştır. Uygun örnekleme yöntemiyle belirlenmiş 216 adayı araştırmanın grubunu oluşturmaktadır. Veri toplama aracı olarak Ölçme Değerlendirme Okuryaza...

Bu çalışmada Türkiye ekonomisinde petrol fiyatları ile ekonomik büyüme arasındaki ilişki 1988:07-2019:08 dönemi aylık verileri kullanılarak araştırılmaktadır. amaçla değişkenlerin durağanlığı Fourier Kwiatkowski-Phillips-Schmidt-Shin (FKPSS) ve Kwiatkowski-Phillips-Schmidt-Shin(KPSS) testleriyle araştırılmıştır. Değişkenler uzun dönem ilişkinin varlığı ise SHIN eşbütünleşme testleri Petrol aras...