With 1 and two passage is there also

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

What did economist john maynard keynes believe about deficit spending?

What choices did the family of emmett till and their supporters make in exposing the brutality of his murder? how did these choices shape public reaction to the murder?