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| Name | Class |
|---|---|
| Heidelberg University | OTHER |
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This online randomized controlled trial will evaluate whether a short animated storytelling video increases behavioral expectation to obtain colorectal cancer screening among screening-eligible U.S. adults who report not yet having completed screening. Participants will be recruited via Prolific and randomized in Stanford Qualtrics to view either a brief animated video or a time-neutral informational text. Outcomes will be assessed immediately after exposure.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Animated Storytelling Video | Experimental | Participants view a brief animated storytelling video about colorectal cancer screening and colonoscopy. |
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| Informational Control | Active Comparator | Participants read a brief time-neutral informational text about colorectal cancer screening. |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Short animated storytelling video | Behavioral | A brief animated storytelling video about colorectal cancer screening and colonoscopy. |
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| Measure | Description | Time Frame |
|---|---|---|
| Change from baseline in behavioral expectation (simple and next-step) to obtain colorectal cancer screening, as measured by a 7-item visual analogue scale. | Participant self-reports their likelihood of discussing, scheduling, or obtaining colorectal cancer screening after exposure to assigned study material. Total scores range from 0-70 with higher scores indicating greater behavioral expectation (Item 7 is reverse scored). | Baseline, immediately post-intervention exposure (up to 24 hours) |
| Measure | Description | Time Frame |
|---|---|---|
| Change from baseline in knowledge about colorectal cancer screening and colonoscopy, as measured by a 5-item knowledge questionnaire. | Self-reported knowledge regarding colorectal cancer screening and the preventive role of colonoscopy, including detection and removal of pre-cancerous polyps. Response options are true/false/not sure, with 1 point per correct answer and 0 points for incorrect or "not sure". Total scores range from 0-5, with higher scores indicating higher knowledge. |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Maya Adam, MD, PhD | Stanford University | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Stanford University | Stanford | California | 94305 | United States |
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| Informational Text | Behavioral | A brief time-neutral informational text about colorectal cancer screening. |
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| Baseline, immediately post-intervention exposure (up to 24 hours) |
| Change from baseline in perceptions and beliefs about colonoscopy, as measured by a 13-item scale. | Self-reported perceptions an beliefs about colonoscopy include perceived susceptibility, perceived severity, perceived benefits and perceived barriers. Responses will be compared on a Likert scale that ranges from 1-5 (Strongly disagree / Disagree / Neither / Agree / Strongly agree), where higher scores indicate more positive perceptions and beliefs, with the perceived barriers section reverse scored. | Baseline, immediately post-intervention exposure (up to 24 hours) |