Has the responsibility of defending the nation

Does manufacturing in the midwest affect the nations economy

What service name do you like? 1.schoolbrella 2.schoolplicity 3.studentaxle 4.studiley 5.edulliance 6.savantsnap 7.peaklemon 8.swiftgrasp 9.educaco 10.vistarise 11.iqpursuit 12.studentpivot 13.edgyadvice 14.studenterra

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