Senatorial elections are not held at the end of every six-year term. they are actually scattered over the six-year term so that not all senators are up for re-election in the same year. how are senatorial elections spread out? a. approximately 1/6 of senators are up for re-election every year. b. approximately 1/3 of senators are up for re-election every two years. c. approximately 2/3 of senators are up for re-election every three years. d. approximately 1/2 of senators are up for re-election every three years.

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