Which of the following alpha coefficients would be the lowest value you would accept in evaluating the reliability of a well-developed measurement tool?
a. .25
b. .50
c. .65
d. .80
ANS: D
A reliability of .80 is considered the lowest acceptable coefficient for a well-developed measurement tool.
A coefficient of .25 would be much too low. A reliability of .80 is considered the lowest acceptable coefficient for a well-developed measurement tool.
A coefficient of .50 would be too low to be acceptable. A reliability of .80 is considered the lowest acceptable coefficient for a well-developed measurement tool.
A coefficient of .65 would be too low to be acceptable. A reliability of .80 is considered the lowest acceptable coefficient for a well-developed measurement tool.
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