Question 17 A researcher reported the following covariance matrix for her 3-item (7-option Likert item responses) test. Item1 Item2 Item3 Item4 Item1 3.84 2.63 1.89 2.14 Item2 2.63 3.62 2.10 2.25 Item3 1.89 2.10 3.68 2.52 Item4 2.14 2.25 2.52 3.80 What is the value of the total test score variance?
Question 17 A researcher reported the following covariance matrix for her 3-item (7-option Likert item responses) test. Item1 Item2 Item3 Item4 Item1 3.84 2.63 1.89 2.14 Item2 2.63 3.62 2.10 2.25 Item3 1.89 2.10 3.68 2.52 Item4 2.14 2.25 2.52 3.80 What is the value of the total test score variance?
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![Question 17
A researcher reported the following covariance matrix for her 3-item (7-option Likert item responses) test.
Item1 Item2 Item3 Item4
Iteml 3.84 2.63 1.89 2.14
Item2
2.63 3.62 2.10 2.25
Item3
1.89 2.10 3.68 2.52
Item4 2.14 2.25 2.52 3.80
What is the value of the total test score variance?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F28b5178b-ae6d-4dab-842d-7a88ae715002%2F3da9f587-3089-4740-8728-90c94a891e75%2Fxyv1d0n_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Question 17
A researcher reported the following covariance matrix for her 3-item (7-option Likert item responses) test.
Item1 Item2 Item3 Item4
Iteml 3.84 2.63 1.89 2.14
Item2
2.63 3.62 2.10 2.25
Item3
1.89 2.10 3.68 2.52
Item4 2.14 2.25 2.52 3.80
What is the value of the total test score variance?
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