As president Warren Harding: a) never abandoned the party hacks who had brought him to success. b) sought a revival of progressive reform. c) proposed the United States join the League of Nations. d) saw his administration end with his defeat for reelection in 1924. e) had no sense of his own intellectual limits.

Pj conducts an experimental study on the effects of soft music during high stakes science testing. he randomly assigns students at the school. in one condition he does not provide music for testing while in the other group he does provide the music. he administers a pretest at the beginning of the year and a posttest at the end of the year. pj’s design is best described as a: a.static group comparisonb. pretest-posttest control group designc.control-group-time-series designd. nonrandomized control-group pretest-posttest design