Cronbach coefficient alpha (α) | Survey questions included | Examples | |
---|---|---|---|
Susceptibility | 0.62 | 3 items | “How likely do you think it is that you will develop melanoma during your lifetime?” |
Severity | 0.64 | 5 items | “Getting melanoma in the future worries me” and “It is important for me to prevent getting melanoma” |
Benefits | 0.76 | 6 items | “Regular use of sunscreen with SPF 15 or more, is an effective way of avoiding sunburns” |
Barriers | 0.81 | 14 items | “When I am tanning, using sunscreen is uncomfortable” |
Self-efficacy | 0.75 | 4 items | “I am able to recognize warning signs of melanoma at an early stage” |
Empowerment | 0.77 | 5 items | “I am usually confident about the decisions I make” and “I feel powerless most of the time” |
Benefits of tanning | 0.60 | 7 items | “I sunbathe because I feel better with a tanned skin” |