Which action will the researcher take to improve construct validity?
a. Allow data collectors to know which subjects are assigned to which groups
b. Ensure that operational definitions reflect theoretical constructs
c. Make sure that the researcher is involved in data collection
d. Utilize only one measurement method to measure study variables
ANS: B
You might also like to view...
Order: Heparin 25,000 units in 1000 mL 0.09% NS, infuse at 100 mL/h. Calculate the units per day if the dose is within the normal daily range (20,000–40,000 units in 24 h)
1. 60,000 units, which is within the normal daily range 2. 2500 units, which is not within the normal daily range 3. 25,000 units, which is within the normal daily range 4. 60,000 units, which is not within the normal daily range
Which finding in the mouth of a patient who uses smokeless tobacco is suggestive of oral cancer?
a. Bleeding during tooth brushing b. Painful blisters at the lip border c. Red, velvety patches on the buccal mucosa d. White, curdlike plaques on the posterior tongue
The nurse has been providing nutritional guidance to the parents of an 18-month-old. The comment by a parent that would prompt the nurse to provide the parent with further education is
1. "We allow our child to drink applecider only if it has been pasteurized." 2. "We take the meat out of the freezerand then allow it to thaw on the counter for two to three hours before cooking it thoroughly." 3. "We always wash our hands wellbefore any food preparation." 4. "We use separate utensils forpreparing raw meat and preparing fruits,vegetables,and other foods."
Viruses invade living cells. Which disease is caused by a virus?
A) Myocardial infarction B) Hepatitis B C) Colitis D) Cholecystitis