Mathematics, 16.02.2021 01:00 katiems5514

Which of these are the treatments in this experiment? O A. Taking a practice exam and not taking a practice exam O B. Having taken high school chemistry and not having taken high school chemistry OC. Being one of the 50 students selected and not being one of the 50 students selected D. Taking a morning chemistry class and taking an afternoon chemistry class

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Which of these are the treatments in this experiment? O A. Taking a practice exam and not taking a p...