Which of the statements about industry during ww ii is correct ? a) production of passenger cars increased b) women became part of the work force c)th assembly line could not be used for complex weaponry d)american factories were so productive that they produced a lot of consumer goods along with military goods

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