Psychological construct | Sample item | Response scale (number of items) | Construct source(s) [reference number] | αT1 αT2 αT3 |
---|---|---|---|---|
self-efficacy | In the next six months, I am confident that I can participate in regular physical activity: When I have to do it by myself. | "Not confident at all" to "Extremely confident" (9 items) | .93 .93 .94 | |
decisional balance pros | Over the next 6 months: Physical activity would help reduce tension or manage stress. | "Not at all" to "Very much" (5 items) | .85 .83 .85 | |
decisional balance cons | Over the next 6 months: Physical activity would take too much time. | "Not at all" to "Very much" (6 items) | .77 .75 .78 | |
behavioral processes | How often in the past month: Did you set physical activity goals for yourself that you could reach? | "Never" to "Very often" (9 items) | [44] | .86 .84 .87 |
experiential processes | How often in the past month: Did warnings about health problems cause concern? | "Never" to "Very often" (10 items) | [44] | .81 .80 .82 |
severity | I feel: For me, being physically inactive would be a very bad thing. | "Definitely not" to "Definitely yes" (3 items) | .61 .60 .81 | |
vulnerability | I feel: If I don't get enough physically activity, I would be at risk for serious health problems. | "Definitely not" to "Definitely yes" (3 items) | .84 .92 .91 | |
fear | I feel: Not getting enough physical activity would frighten me because of the possibility of developing serious health problems. | "Definitely not" to "Definitely yes" (3 items) | .93 .94 .95 | |
response efficacy | I feel: For me, physical activity will keep me healthy. | "Definitely not" to "Definitely yes" (3 items) | .83 .78 .91 | |
attitude | For me regular physical activity over the next 6 months will be: "Quite Useful" to "Quite Useless" | Response scale differed for each item (i.e., enjoyable, useful, wise, interesting, relaxing, beneficial) (6 items) | .78 .82 .80 | |
injunctive norms | Over the next 6 months: Most people in my social network want me to do regular physical activity. | "Strongly disagree" to "Strongly agree" (4 items) | .67 .73 .73 | |
descriptive norms | Over the next 6 months: Most of my family members will participate in regular physical activity. | "Strongly disagree" to "Strongly agree" (4 items) | .55 .61 .63 | |
social support | Over the next 6 months: People in my social network are likely to help me participate in regular physical activity. | "Strongly disagree" to "Strongly agree" (3 items) | .76 .73 .73 | |
perceived behavioral control | Over the next 6 months: If I were really motivated participating in regular physical activity would be easy. | Response scale differed for each item (4 items) | [47] | .57 .60 .60 |