Dr Feelgood Is Developing an Instrument on Tender Loving Care

Dr. Feelgood is developing an instrument on tender loving care. She obtains a reliability coefficient of .85. The standard error of measurement is 6.2. A nursing student takes the test and has a score of 80 (on a 0 to 100 scale) . Which of the following is true?

A) With a confidence interval of 95%, the true score falls between approximately 68 and 92
B) With a confidence interval of 95%, the true score falls between 73.8 and 86.2
C) The precision with which the true score is estimated is decreased due to a low reliability coefficient
D) b and c

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