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. Author manuscript; available in PMC: 2011 Aug 1.
Published in final edited form as: Transfusion. 2010 Apr 23;50(8):1778–1786. doi: 10.1111/j.1537-2995.2010.02618.x

Table 1.

Scales and Internal Consistency Reliabilities

Intention Scale: Below are a number of questions related to your intentions about donating blood. Please read each statement carefully and indicate where you fall on the 5-point scale.
1. How likely is it that you will give blood again in the next 12 months? Very unlikely/likely α = .86
2. How likely is it that you will give blood again in the next 6 months?
3. How likely is it that you will give blood again in the next 3 months?
Attitude Scale: Below are a number of statements related to your current feelings and thoughts about blood donation. Please read each statement carefully and indicate where you fall on the 7-point scale.
1. The idea of donating blood in the next year seems: Bad/Good
Unpleasant/Pleasant
Dissatisfying/Satisfying
Sad/Happy
Attractive/Repulsive		 α = .88
Anxiety Scale: Read the statements below and circle the number that corresponds with how you feel right now about donating blood based on the 4-point scale.
1. I feel calm Not at all/ α = .74
2. I am tense Somewhat/
3. I feel upset Moderately so/
4. I feel content Very much so
Self-Efficacy Scale: Below are a number of statements related to your current feelings and thoughts about blood donation. Please read each statement carefully and indicate where you fall on the 7-point scale.
1. I feel confident that I can do things to keep from having a bad blood donation experience. Strongly disagree/Moderately disagree/Slightly disagree/Neither disagree or agree/Slightly agree/Moderately agree/Strongly agree α = .75
2. Nothing I can do will change my donation experience.
3. I am able to reduce the intensity of a negative reaction such as faintness, dizziness, weakness, lightheadedness or nausea.
4. There are things I can do to reduce any uncomfortable blood donation reaction.
5. Once I am donating blood, there is nothing I can do to affect my reaction.
6. If I do certain things before donating blood, I can increase the chances of having a positive experience.
7. I can prevent negative reactions by changing the things that I do.
8. I can do things to control how much I am affected by negative reactions to donation.
9. I cannot control the way I react to donating blood.