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K Bird

Publications and source records attributed to K Bird.

4 recordsLinked to original sources

Extratesticular hemorrhage associated with torsion of the spermatic cord: sonographic demonstration.

Using ultrasound (US), we studied seven patients with torsion of the spermatic cord associated with a large amount of extratesticular hemorrhage. In each case, US showed a large echogenic or complex extratesticular mass caused by the hemorrhage, in addition to a hypoechoic testis and scrotal skin thickening. This appearance should be recognized as part of the spectrum of sonographic appearances that can be seen in torsion.

Adolescent

The problem of multiple inference in psychiatric research.

This paper deals with the problem of multiple inference in psychiatric research, an issue which arises whenever a researcher has to make more than one statistical inference in a single research study. It frequently arises in psychiatric research because of multivariate study designs, with subjects being measured on more than one dependent variable with the intention of studying differences between groups in mean scores. The disadvantages of the commonly adopted strategy of using multiple univariate tests (e.g. multiple t-tests) are outlined. Two broad strategies--Bonferroni-adjusted univariate tests and multivariate statistical analysis--are introduced. Their advantages and disadvantages are discussed in terms of their usefulness in confirmatory and exploratory research in psychiatry.

Analysis of Variance