In this paper, we consider a nonparametric permutation test on the correlation coefficient, which is applied to a significance test on regression coefficients. Because the permutation test is very computerintensive, there are few studies on small-sample properties, although we have numerous studies on asymptotic properties with regard to various aspects. In this paper, we aim to compare the per...

I present a method for quickly performing multiple nonparametric two-sample permutation tests on continuous data in SAS, even when one sample is large. I maximize statistical power (within the context of a crude Monte Carlo approach) by “oversampling” – drawing more permutation samples than desired, deleting duplicates, and then selecting the desired number of samples from the remainder. I dete...

Since traditional diagnosis of dermatophyte infections is slow, we present a rapid new PCR test for detection of Trichophyton spp., Microsporum canis and M. audouinii infections. The performance of the test was evaluated with: 58 dermatophyte isolates; 10 yeast, mould and human DNA control samples; 25 routine specimens from patients suspected of having dermatophytosis; 10 hair specimens from gu...

CLINICAL CHEMISTRY, Vol. 35, No. 3, 1989 497 4#{176}C. For 12 additional patients (group B) the analysis was performed immediately and repeated 10 and 30 days after collection of the samples, which were stored at room temperature in airtight containers. The data were examined by Student’s paired t-test and linear-regression analysis. In neither group did storage conditions significantly influen...