An educational psychologist studies the effect of frequent testing on retention of course material. In one of the professors sections, students are given quizzes each week. The second section receives only two tests during the semester. At the end of the semester, both sections receive the same final exam, and the scores are summarized below. Frequent Quizzes Two Exams n=15 n=15 M=82 M=78 S2= 7.07 S2=13.57 a. Does the data indicate that testing frequency significantly increases performance at the .01 level of signifigance. b. what percent of increase in performance was due to the increase in testing frequency?
An educational psychologist studies the effect of frequent testing on retention of course material. In one of the professors sections, students are given quizzes each week. The second section receives only two tests during the semester. At the end of the semester, both sections receive the same final exam, and the scores are summarized below. Frequent Quizzes Two Exams n=15 n=15 M=82 M=78 S2= 7.07 S2=13.57 a. Does the data indicate that testing frequency significantly increases performance at the .01 level of signifigance. b. what percent of increase in performance was due to the increase in testing frequency?
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 10CYU
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An educational psychologist studies the effect of frequent testing on retention of course material. In one of the professors sections, students are given quizzes each week. The second section receives only two tests during the semester. At the end of the semester, both sections receive the same final exam, and the scores are summarized below.
| Frequent Quizzes | Two Exams |
| n=15 | n=15 |
| M=82 | M=78 |
| S2= 7.07 | S2=13.57 |
a. Does the data indicate that testing frequency significantly increases performance at the .01 level of signifigance.
b. what percent of increase in performance was due to the increase in testing frequency?
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