Treatment is indicated in patients with Pagetâs disease of bone with elevations in serum alkaline phosphatase of two times or higher than the upper limit of the age-specific normal reference range, or those who are symptomatic, or those at risk for complications from their disease [see Clinical Studies (14.5)].
experimenter bias - (psychology) bias introduced by an experimenter whose expectations about the outcome of the experiment can be subtly communicated to the participants in the experiment. number of conclusions drawn from the reviewed studies were unfounded because the experimenters inferred causation from correlation, lacked standardized measures, had poor sampling procedures, failed to control for threats to validity, had very limited assessment of anxiety, had.
Definition of Bias. Systematic error is also known as bias. It is any systematic process in the conduct of a study that results in the incorrect estimate of a measure of disease occurrence or measure of association.1  Because it is a systematic process, it will cause a distortion from the truth in a predictable (not random) direction.echnical Definition: It is the bias, in other words deviation from the truth, that it is caused when any measurement collected about or from subjects is not completely valid (i.e., not completely accurate).