_____________ is the philosophy focusing on what works as the criterion of what should be viewed as tentatively true and useful in research and practice

What sorts of legal issues might be raised to challenge a national compulsory voting law in the U.S.?

A) Whether the Constitution protects the right to vote B) Whether the Constitution protects the right not to vote C) Whether states that disagree with compulsory voting would be permitted to secede D) Whether the Supreme Court's precedent that a national compulsory voting law would be unconstitutional would stand E) All of the above

The logic of an experiment is that when one group that experiences an experimental manipulation and another group does not, any differences in subsequent behavior are due to the independent variable. This conclusion is true when

a. both groups are comparable at the beginning of the study. b. the control group and the placebo group experience the same manipulation. c. the study is double-blind, but not single blind. d. demand characteristics are present in both groups.