When compared to the all voters in the general population the delegates to the Republican Party Convention are much more __________

A researcher is carrying out a quasi-experimental study. She has the experimental groups in one lab and a control group in another lab

During the intervention phase of her study, the control school has a small fire that forces participants to leave the lab for one hour. She finds huge differences between the experimental and control groups after the study is completed. While there could be an effect of her intervention, a possible rival hypothesis might be: a. There was a maturation effect b. There was an instrumentation effect c. There was a differential history or selection-history effect d. There was a selection-maturation effect

What are the two means through which the Constitution can be amended?

What will be an ideal response?