Table 4.

Aggregate Test Rankings Before and After Consideration of Attributes

Short Description	Ranking After Short Descriptiona	Ranking After Short Description and all 13 Attributesb
Fecal occult blood testing	1.89	2.60
This test checks if your bowel movement contains blood. It is done at home using a test kit with 3 cards. You smear a sample of your bowel movement onto a card. This is done for 3 different bowel movements. The 3 cards are then returned to the laboratory
Colonoscopy	2.22	1.79
A doctor checks for growths or cancer in your whole colon using a flexible, long, narrow, lighted tube with a camera on the end. It is inserted into your bottom and then passed into your whole colon, which can be seen on a television screen. You are given medicine through a needle in your arm to make you sleepy during the test
Flexible sigmoidoscopy	2.61	2.46
A doctor checks for growths or cancer in the lower third of your colon using a short, flexible, narrow, lighted tube with a camera on the end. It is inserted into your bottom and then passed only into your lower colon, which can be seen on a television screen. You are awake during the test
Double-contrast barium enema	3.28	3.15
The doctor checks the outline of your colon for growths or cancers. A white liquid called barium is put into your bottom through a tube by a radiology technician. You must hold the liquid in while air is also put into your bottom. You are on a table that is moved around and then X-rays are taken with you in different positions. You are awake during the test

^a Reliability=0.97, r̄=0.21; P <.001.

^b Reliability=0.98, r̄=0.19; P <.001.