The comparison of different stimuli showed that some stimuli are more exposed to producing side effects in certain tests than others.
Animals are a suitable replacement for human cadaveric spines in certain testing protocols [[4] [11]] with well reported anatomical and biomechanical comparisons [[12],[13]] but have limitation in terms of size and angle of lordosis.
"What impressed me most," he wrote, "was Einstein's own clear statement that he would regard his theory as untenable if it should fail in certain tests". In contrast, Popper pointed out, there were pseudo-scientists, such as Karl Marx and Sigmund Freud.
For example, even if a certain input is found to generate a 0.25 standard deviation gain in a certain test in a certain country, it is difficult to determine what that would be equivalent to elsewhere.
Secondly, a clear and detailed description (or citations) is needed to implement a certain test in another setting.
In addition, certain tests are used to classify blood according to specific red blood cell antigens, or blood groups (see blood typing).
The company also said it had stopped using certain test results in its ads.
European test laboratories [48] checked both test methods for robustness to certain test parameters in a comprehensive study of numerous representative construction products.
