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Reliability in Measurement Quiz

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Questions and Answers

What does a reliability coefficient of r=.85 mean?

85% of variability in observed scores is due to measurement bias

85% of variability in observed scores is due to random error

85% of variability in observed scores is due to sampling error

85% of variability in observed scores is presumed to represent true individual differences and 15% of variability is due to random error (correct)

What is the range for moderate reliability?

0.81-1.00

0.00-0.04

0.61-0.80

0.41-0.60 (correct)

What does stability refer to in the context of reliability?

The degree to which items on a questionnaire measure a particular variable

The extent that the instrument yields the same result on repeated measures

The consistency with which a measuring instrument yields a certain, consistent result

The degree to which an instrument generates similar findings from the same group of individuals on different occasions (correct)

What does internal consistency measure?

The degree to which items on a questionnaire measure a particular variable Signup and view all the answers

What does equivalence assess in the context of reliability?

The agreement of two instruments (interrater reliability) Signup and view all the answers

What does intra-rater reliability assess?

How one person rates the same observation on 2 or more occasions: consistency Signup and view all the answers

What does inter-rater reliability assess?

The agreement of two or more independent observers Signup and view all the answers

What is the analogy used to describe reliability?

Consistency to variance Signup and view all the answers

What does a reliability coefficient of r=0.90 indicate?

Very strong reliability Signup and view all the answers

What is the range for very strong reliability?

0.81-1.00 Signup and view all the answers