A study of reading comprehension in children compared three methods of instructi

Question

A study of reading comprehension in children compared three methods of instruction. The three methods of instruction are called Basal, DRTA, and Strategies. Basal is the traditional method of teaching, while DRTA and Strategies are two innovative methods based on similar theoretical considerations. The READING data set includes three response variables that the new methods were designed to improve. Analyze these variables using ANOVA methods. Be sure to include multiple comparisons or contrasts as needed. Write a report summarizing your findings.

Explanation / Answer

Anova:Single factor Summary Groups Count Sum Average Variance pre1       66 646 9.78787 9.12354 pre2 66 337 5.10606 4.89627 post1   66 533 8.07575 11.51725 post2   66 443 6.71212 6.94662 post3 66 2905 44.01515 44.13823 ANOVA Source variation ss df MS F P Value F Crit Between groups 71493.16 4 17873.29 1166.33 2.60E-191 2.399432 Within groups 4980.424 325 15.32438 Total 76473.59 329 Since p

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