Two teachers were asked to rate eight different textbooks for a specific subject on an ascending scale from 0 to 3 points. Points were assigned for each of several criteria, such as content, illustrative examples, and readability.F the strength and direction of the correlation. Textbook Teacher's 1 Rating Teacher's 2 Rating 14 14 B 20 16 28 30 30 24 22 26 12 18 G. 15 21 H. 19 17

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