Solution-Example of when something is valid and not reliable

Example of when something is valid and not reliable

Reference no: EM131084479

Topic: Describe what reliability means in terms of research and why it is important. How does a researcher ensure that reliability is maintained in instruments, and between raters?

Question: Can you give me an example of when something is valid and not reliable?

Reference no: EM131084479

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An n-dimensional random vector with expected value : Let X1,..., Xn be iid random variables with expected value 0, variance 1, and covariance Cov[Xi, Xj] = ρ. Use Theorem 5.13 to find the expected value and variance of the sum Y = X1 +···+ Xn.

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Example of when something is valid and not reliable : Topic: Describe what reliability means in terms of research and why it is important. How does a researcher ensure that reliability is maintained in instruments, and between raters?

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Example of when something is valid and not reliable

Reference no: EM131084479

Reference no: EM131084479

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