Multidimensional Scaling analysis (MDS) and Multivariate of variance (MANOVA) are among the commonly used multivariate statistical methods. While MANOVA is to evaluate whether there statistically significant differences between mean vectors experimental groups in terms more than one independent variable; MDS both for dimension reduction classify individuals/variables according their differences...

In this study, we examined the association among perceptions of racial and/or ethnic discrimination, racial climate, and trauma-related symptoms among 289 racially diverse college undergraduates. Study measures included the Perceived Stress Scale, the Perceived Ethnic Discrimination Questionnaire, the Posttraumatic Stress Disorder Checklist-Civilian Version, and the Racial Climate Scale. Result...

Roy’s largest root is a common test in multivariate analysis of variance (MANOVA), with applications in several other problems, such as signal detection in noise. In this paper, assuming multivariate Gaussian observations, we derive a simple yet accurate approximation for the distribution of Roy’s largest root test, in the extreme case of concentrated non-centrality, where the signal or differe...

PURPOSE To determine whether visual functions are decreased in children with infantile spasms and vigabatrin-attributed retinal toxicity. METHODS Contrast sensitivity and grating acuity were measured by using sweep visual evoked potential (VEP) testing in 42 children with infantile spasms (mean age, 29.23 +/- 18.31 months). All children had been exposed to vigabatrin (VGB) for a minimum of 1 ...