The difference between a true score and an obtained score is referred to as which of the following?
A) Internal inconsistency
B) Non-equivalence
C) Interobserver disagreement
D) Error of measurement
D
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The obtained (or observed) score is the value obtained from measurement. The true score is the true value that would be obtained if it were possible to have an infallible measure. The true score is hypothetical—it cannot be known because measures are not infallible. The final term in the equation is the error of measurement, which is the difference between true and obtained scores. When the reliability assessment focuses on equivalence between observers or coders assigning scores, estimates of interrater (or interobserver) reliability are obtained. Internal consistency reliability, which refers to the extent to which the entire instrument's items are measuring the same attribute, is usually assessed with Cronbach's alpha.
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A female patient with obesity will soon begin treatment with orlistat. The nurse should teach the patient that
A) there will be fat present in her stools. B) her appetite will decline over the next 48 hours. C) she will have to increase her fiber intake. D) she will need to temporarily eliminate fats from her diet.
Mr. J is a 59-year-old African American who has poorly controlled hypertension. When reviewing his diet journal and blood pressure log (BP), you notice that on days that his BP is elevated his diet has usually included food high in:
1. Sodium. 2. Protein. 3. Fats. 4. Fiber.
Which observation requires an intervention of a new graduate nurse by her preceptor?
a. Administering a medication after checking the patient's name and birth date. b. Leaving patient room without charting vital signs. c. Reporting a patient's change in level of consciousness to the nurse practitioner. d. Checking the apical pulse on a patient receiving digoxin (Lanoxin).
During a counseling session, which statement by an adolescent indicates he is adjusting to expected developmental tasks?
a. "I wish my parents would just leave me alone." b. "I'm hoping to go to college." c. "I don't have any friends." d. "It's terrible being taller than all my friends."