Ess Why is it important to use random assignment when determining which research
participants will comprise the different treatment groups in the study
Because there is no form of research that can be conducted without using
random assignment,
5
Random assignment balances out the differences that might naturally
exist between participants,
It is not important to use random assignment.
Random assignment eliminates variability from research

Americans often speak of their country as one of several large regions.  these regions are cultural units rather than governmental units --  formed by history and geography and shaped by the economics, literature and folkways that all the parts of a region share. what makes one region different from another? a region's multicultural heritage as well as distinct demographic characteristics like age and occupation make regions different and special. within several regions, language is used differently and there are strong dialects. there are also differences in outlook and attitude based on geography.