Selection bias occurs when groups differ systematically from each other due to what aspect of the study setup?
Answer
The process used to select participants
Selection bias arises when the method used to assign individuals to experimental or control groups results in groups that are already different from each other before the intervention has even begun.
Related Questions
What fundamentally distinguishes experimental bias from random error?Which type of selection bias results from participants dropping out at unequal rates between groups?What bias involves judging the quality of a decision based on the final outcome rather than the process quality at the time?What step counters outcome bias by pre-committing to required statistical thresholds before viewing data?What modern bias involves researchers over-relying on algorithmic output, treating it as inherently superior to human judgment?What does double-blinding primarily tackle regarding experimenter influence?How might experimenter bias manifest when grading subjective data?What procedural rigor prevents researchers from shifting goals or methods post-hoc to fit the observed data?Selection bias occurs when groups differ systematically from each other due to what aspect of the study setup?Which form of bias involves data inputs being skewed due to an improperly calibrated scale or leading survey language?