Read the text from R. M.S. Titanic. "At 9:00 a. m. a message from the steamer Caronia sputtered into the wireless shack: Captain, Titanic-Westbound steamers report bergs growlers and field ice 42 degrees N. from 49 degrees to 51 degrees..." pl help now

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