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Author Question: A teacher split a 50-item test into odd and even items, scored each half, and then correlated odd ... (Read 116 times)

panfilo

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on: Jun 20, 2018
A teacher split a 50-item test into odd and even items, scored each half, and then correlated odd scores with even scores. The correlation coefficient was .55 . What is the estimated reliability for the full 50-item test?
 
  a. .80
  b. .71
  c. .69
  d. .65
  e. .60

Question 2

The reliability of a spelling test is .80 . If the test is doubled in length, the reliability of the test will be approximately
 
  a. .80.
  b. .84.
  c. .89.
  d. .90.
  e. 1.60.


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Hdosisshsbshs

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

B

Answer to Question 2

C


panfilo

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Reply 2 on: Jun 20, 2018
Excellent

frankwu0507

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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