One Reason Why Researchers Rarely Examine Whether Prevention Programs Reduce

question 31

Multiple Choice

One reason why researchers rarely examine whether prevention programs reduce incidence rates is that

• A)there are no tools for measuring outcome.
• B)it is necessary to have a very large sample to detect a difference.
• C)it is unnecessary to conduct this type of research as long as high-risk samples are targeted.
• D)all of the above.

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Definitions:

Papillary Ducts

Channels in the kidneys through which urine flows from the collecting ducts to the renal pelvis.

Renal Pelvis

The central part of the kidney where urine collects before moving into the ureter.

Minor Calyces

Small funnel-shaped structures in the kidney that collect urine from the nephrons and pass it to the major calyces.

Renal Pyramids

Cone-shaped tissues in the kidneys that produce and channel urine towards the ureters.