In the study discussed in Exercise 18.10, the authors also ran a control group under the same
Question:
(a) Calculate the means for these data and plot them on the same graph used in Exercise 18.9.
(b) Run the analysis of variance on these data.
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Pretest Posttest Follow-up Follow-up 6 Months 2 Months 69 05 56 36 05 24 08 35 37 26 51 25 59 53 08 45 02
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Fundamental Statistics for the Behavioral Sciences
ISBN: 978-1285076911
8th Edition
Authors: David C. Howell
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