The purpose of a control group in a controlled experiment isto provide a

According to the text, which of the following adolescents is most likely to exhibit formal operational thought?

adolescents who have had coursework in math and science || adolescents who have higher intelligence || adolescents who have part-time jobs || older adolescents || || ||

On a classroom test composed of a 50 multiple-choice items, the most appropriate scoring

formula, where S = final score, R = number of items answered correctly, W = number of items answered incorrectly, and k = number of options per item, is A) S = R - W. B) S = R - W/(k - 1). C) S = R - kW. D) S = R.