Examlex
Identify and state the historical significance of the following:
-Harry S Truman
Experimenter Bias
The influence that a researcher's expectations or preferences may have on the results of an experiment, potentially leading to skewed or invalid conclusions.
Statistically Significant
A result is considered statistically significant if it is unlikely to have occurred by chance alone, indicating a genuine effect or difference.
Placebo Effect
The phenomenon in which a person experiences a physiological or psychological improvement after being given a treatment with no therapeutic value, due to their belief in its efficacy.
Experimental Group
In research, the group of subjects who are exposed to the variable under study, used to assess the effect of that variable.