You are planning to buy a new car and stop at a local dealership. As you admire a particular car model, you remember two guys in your math class talking about this very car and how many problems they are having with it. You decide to keep looking for a car, maybe a different brand. Your attitude regarding this car is due to

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