Table 2.

CRC knowledge assessment survey: items and scale internal reliabilities.

Scale	Items	Cronbach’s Alpha
Total knowledge	All 14 knowledge items	0.94
General knowledge of CRC	Do you know what cancer of the colon and rectum (CRC) is?	0.74
	Do you know what a colon polyp is?
	A low fat and high fiber diet helps decrease the risk for cancer of the colon and rectum.
	Physical activity decreases the risk for cancer of the colon and rectum.
Knowledge of CRC risk factors	The risk of colon and rectum cancer increases after the age of 50.	0.88
	A family history of cancer of the colon and rectum does not increase your risk.
	Do you know what your risk for colorectal cancer is?
	Finding cancer early will not increase the chances of surviving it.
	You only need to have a colorectal cancer screening test if you are having symptoms.
	Do you know the different types of screenings for cancer of the colon and rectum?
Knowledge of screening	Do you know what a:	0.89
	Fecal Occult Blood Test (FOBT) is?
	Colonoscopy is?
	Sigmoidoscopy is?
	Do you know where you can receive these screening services?
Physician interactions	Have you ever talked to your physician about cancer of the colon and rectum?	0.92
	Has your physician ever recommended a FOBT, sigmoidoscopy, or colonoscopy?