A statistically significant difference between two groups indicates that all or most participants in one group are different from all or most of the participants in the other group.

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A statistically significant difference between two groups indicates that there is a low probability that the observed difference occurred by chance. Statistical significance does not necessarily mean that all or most participants in one group are different from all or most of the participants in the other group, but rather that there is a likely difference between the groups that is not due to random variability.

A Statistically Significant Difference Between Two Groups Indicates That All