2.4.4 Qs 12-16

What is the relationship between the standard error of measurement (SEM) and a reliability coefficient?

This response will be awarded full points automatically, but it can be reviewed and adjusted after submission.

What does a 68.26% confidence interval mean?

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A test of numerical reasoning has a reliability of 0.9 and a standard deviation (SD) of 3. Using the formula from the lesson, what is the standard error of measurement (SEM) for this test?

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If the reliability of the test has been reduced to 0.7 what would the SEM be?

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Peter takes the numerical reasoning test (assume the reliability is 0.9). His observed score on the test is 10. Write down his true score range for the following:

Confidence level of 68.26%
Confidence level of 95.44%

This response will be awarded full points automatically, but it can be reviewed and adjusted after submission.

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