We present a diagnostic test of possible Galactic contamination of cosmic microwave background sky maps designed to provide an independent check on the methods used to compile these maps. The method involves a non-parametric measurement of crosscorrelation between the Faraday rotation measure (RM) of extragalactic sources and the measured microwave signal at the same angular position. We argue ...

abstract: so far, few studies investigate the correlation of amount of sleep and blood glucose control among diabetic patients. the aim of this study was to determine the correlation of amount of sleep with hemoglobin a 1c and fasting blood sugar in diabetic patients. in this study, 101 patients with type 2 diabetes were studied. demographic data and amount of sleep were collected by questionna...

Time series cointegration tests, even in the presence of large sample sizes, often yield conflicting conclusions (“mixed signals”) as measured by, inter alia, a low correlation of empirical p-values [see Gregory et al., 2004, Journal of Applied Econometrics]. Using their methodology, we present evidence suggesting that the problem of mixed signals persists for popular panel cointegration tests....

This article introduces testforDEP, a portmanteau R package containing several tests and visualization tools to examine independence between two variables. This new package combines classical tests including Pearson’s product moment correlation coefficient method, Kendall’s τ rank correlation coefficient method and Spearman’s ρ rank correlation coefficient method with modern tests consisting of...

The correlation between delta differences for 20 serum chemistry tests was calculated for 2400 samples from 288 patients. There were 12 pairs of chemistry tests for which correlation coefficients of the delta checks exceeded 0.25; aspartate aminotransferase and alanine aminotransferase had the highest Pearson correlation coefficient, 0.915. The highest negative, indirect, correlation was betwee...

The statistical analysis technique of correlation has extensively been used in second/ foreign language testing research for a variety of purposes. Most commonly, the technique has been used to validate newly constructed language tests (particularly cloze tests) against previous supposedly valid measures. Tests such validated are meant to substitute the older ones, and based on these newly vali...

There is disagreement among researchers about whether IQ tests or divergent thinking (DT) tests are better predictors of creative achievement. Resolving this dispute is complicated by the fact that some research has shown a relationship between IQ and DT test scores (e.g., Runco & Albert, 1986; Wallach, 1970). The present study conducted meta-analyses of the relationships between creative achie...

Introduction Behavioral tests of auditory processing have been applied in schools and highlight the association between phonological awareness abilities and auditory processing, confirming that low performance on phonological awareness tests may be due to low performance on auditory processing tests. Objective To characterize the auditory middle latency response and the phonological awareness t...