Why is a Pearson's r of .6 more than twice as useful as a Pearson's r of .3? What will be an ...

Why is a Pearson's r of .6 more than twice as useful as a Pearson's r of .3?

What will be an ideal response?

Ques. 2

How are these three coefficients related mathematically?

What will be an ideal response?

Ques. 3

How do the Pearson's r, the Spearman Rho and the Phi coefficients differ?

What will be an ideal response?

Ques. 4

How do college admissions officers use correlations?

What will be an ideal response?

Ques. 5

Why do correlation studies in education usually involve attribute variables?

What will be an ideal response?

Ques. 6

Structural equation modeling

a. is used in the analysis of causality
b. begins with factor analysis
c. employs path analysis
d. is very complex and data intensive
e. All of these are true.

Ques. 7

Among the considerations for assessing the utility of a correlation are: absolute size and predictive validity, comparisons to other correlations, and statistical significance. Choose the appropriate consideration to answer each of the following questions. In which would you compare competing predictors of success in a vocational training program?

a. absolute size and predictive validity c. statistical significance
b. comparisons to other correlations

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Why is a Pearson's r of .6 more than twice as useful as a Pearson's r of .3? What will be an ...

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