Table 1.

Sample Item Wording Modifications Obtained through: Expert Reviews and Cognitive Interview Testing with Community Members

BANKS - Attitudes Scale
Original Item	Participant Comments (Expert or Cognitive Interview)	Final Item
1. People who give biospecimens may help prevent diseases	Remove ‘may'’ (Expert)	1. People who give biospecimens help prevent diseases
2. Giving a biospecimen may be a waste of a person's time	Remove ‘may’ (Expert)	2. Giving a biospecimen is a waste of a person's time
3. Giving a biospecimen will get in the way of a person's medical care	Remove ‘will’ (Expert)	3. Giving a biospecimen gets in the way of a person's medical care
4. Personal information is likely to be stolen from a biobank	Change to positive attitude (Expert)	4. Personal information is unlikely to be stolen from a biobank
BANKS - Knowledge Scale
Original Item		Final item
1. The results of research done with the biospecimens a person gives will show up in his/her medical records.	“It's too wordy” (Cognitive Interview)	1. Research results from biospecimens will show up in medical records
2. A researcher will call a person if his/her biospecimens show risk for a disease	“replace ‘call’ with ‘contact’” (Cognitive Interview)	2. Researchers will always contact people if their biospecimens show risk for a disease
BANKS - Self-efficacy Scale
Original Item		Final item
1. I think I could give a biospecimen even if it hurts a bit	“How painful is ‘a bit’? remove ‘a bit’” (Cognitive Interview)	1. I think I could give a biospecimen even if it hurts
2. I think I could give a biospecimen to a biobank even if I feel ill	“sick? ill? How ill do I need to be not to be able to donate?” (Cognitive Interview)	2. I think I could give a biospecimen to a biobank even if I am not feeling well