MCQOPTIONS
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				| 1. | 
                                    The concept of rational sub group means that subgroups or samples be selected such that ifassignable causes are present the chances for differences between subgroups will be ______________. | 
                            
| A. | minimized | 
| B. | maximized | 
| C. | neutralized | 
| D. | optimized | 
| Answer» C. neutralized | |