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Age as a factor influencing the power and sensitivity of experiments for assessing body weight, testis size, and spermatogenesis in rats
Experimental design daily sperm production spermatogenesis testes
2009/2/6
Data from 25 rats aged 60, 150, or 240 days (n = 75) were used to determine the number of observations per rat and or rats per treatment group needed to provide future experiments of known power and...
Optimal Power Transformations for Analysis of Sperm Concentration and Other Semen Variables
Statistics data transformation male fertility
2008/12/8
The nongaussian (or nonnormal) distribution of sperm concentration, and variables deriving from it, is a common practical problem in the statistical evaluation of semen data. Yet it has been littl...