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Author Question: The same test was administered twice to two groups of students. The students were similar in ability ... (Read 51 times)

jilianpiloj

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on: Jun 20, 2018
The same test was administered twice to two groups of students. The students were similar in ability and achievement. Group I was administered the test on two consecutive days. Group II was administered the test at the beginning and the end of the month. Which groups' test-retest scores will have a lower correlation?
 
  a. I
  b. II
  c. We cannot infer from the information given.

Question 2

The correlation coefficient of 0.95 between mathematics and physics scores of a group of students means that high performance in mathematics causes high performance in physics.
 
  a. True
  b. False


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underwood14

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Reply #1 on: Jun 20, 2018
Answer to Question 1

b

Answer to Question 2

b


jilianpiloj

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Reply 2 on: Jun 20, 2018
Thanks for the timely response, appreciate it

ricroger

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Reply 3 on: Yesterday
Wow, this really help

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