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.
Volunteer participants may skew to one type of group or possess certain lifestyle characteristics that contribute to the outcome being tested. Experimenter bias. This type of bias arises when scientists are influenced by additional factors that influence their objective evaluation of the data. Detection bias Detection of cancer incidence of one population may be skewed by many completely unrelated factors (ex. better health insurance)