Statistical significance determines whether an observed difference between a treatment and control group is likely due to
A)random assignment.
B)external validity.
C)chance.
D)confounds.

Question

Quizplus · Accepted Answer

Statistical significance determines the likelihood that the observed difference between a treatment and control group is due to chance. Random assignment helps to ensure that other factors are equally distributed between the groups, but statistical significance specifically addresses the likelihood that the observed difference is not simply a fluke occurrence. External validity refers to how well the findings can be generalized to other populations or settings, and confounds refer to extraneous variables that can affect the outcome of the study.

Statistical Significance Determines Whether an Observed Difference Between a Treatment