Table 1 Summary of Measures in the Survey

Heard, had, and intention for colon cancer screening

Vernon et al. [37]

3 items added

 • 2 items drawn from prior literature [43]

 • 1 item - researcher developed

Perceived susceptibility & Perceived severity

Perceived susceptibility and perceived severity

Perceived susceptibility

Ozsoy et al. [31] used Jacobs [44] measures for colorectal cancer screening that were initially drawn from

Champion’s [45] breast cancer screening measures

 •  1 item was added [46]

Perceived severity

 • 2 items added [47, 48]

Perceived benefits & Perceived barriers

Perceived benefits and perceived barriers

Perceived benefits

Rawl et al. [49] colorectal cancer screening measures were drawn from Champion’s [50] breast cancer screening measures

 • 2 items: 1 item for the home stool test and colonoscopy [51]

Perceived barriers

 • 3 items were added [34, 52]

Perceived self-efficacy & Subjective norm

Perceived self-efficacy and subjective norm

Perceived self-efficacy

Flight et al. [53] used measures from Tiro et al. [54] and Vernon et al. [55]

 • 1 item was added [56]

Subjective norm

 • 1 item - researcher developed [1]

Socio-contextual items relevant to SA immigrants

Items drawn from scoping and focus group studies [1, 2]

4 items - researcher developed [1]