Social Skills Training A social skillstraining program was implemented with sevenmildly

Chapter 12, Problem 54

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Social Skills Training A social skillstraining program was implemented with sevenmildly challenged students in a study to determinewhether the program caused improvement in pre/post measures and behavior ratings. For one such test, thepre- and posttest scores for the seven students aregiven in the table.9Subject Pretest PosttestEarl 101 113Ned 89 89Jasper 112 121Charlie 105 99Tom 90 104Susie 91 94Lori 89 99a. What type of correlation, if any, do you expect tosee between the pre- and posttest scores? Plot thedata. Does the correlation appear to be positive ornegative?b. Calculate the correlation coefficient, r. Is there asignificant positive correlation?

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