Control by preparation of laboratory setting primarily helps reduce threats to

We rely on formalized control procedures

A) In qualitative research. B) In low-constraint research. C) To decrease reliability. D) To increase validity.

Which most accurately describes the relationship between state constitutions and the U.S. Constitution?

A) State constitutions prevail over the U.S. Constitution. B) The U.S. constitution can be modified by changes in state constitutions and vice versa. C) The U.S. constitution prevails over state constitutions. D) None of these choices are true.