The Prime Minister of Britain plays the exact same role in the British political system as the president does in the American political system

When there is a significant time lapse between pretest and posttest measures, the confounding variable most likely to affect results would be

A) history. B) regression to the mean. C) instrumentation. D) selection.

Based on opinion polls in other areas, one could conclude that an American with a college education is likely to support __________

a. restrictions on women's reproductive rights b. a reduction of welfare benefits c. repealing affirmative action d. guarantees for same-sex marriage