| Research Question: |
| Among respondents who received a video intervention in a randomized COVID-19 messaging study, does physician-respondent race concordance increase information-seeking behavior? |
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| Hypothesis: |
| H0: Physician-respondent race concordance does not increase information-seeking behavior among treated respondents. |
| H1: Physician-respondent race concordance increases information-seeking behavior among treated respondents. |
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| STUDY DESIGN: |
| - Type: Randomized controlled trial |
| - Unit of observation: Individual adult respondent |
| - Sample: Respondents who received a video intervention |
| - Treatment context: Video interventions varied in physician-respondent race concordance, acknowledgement content, and mask framing |
| - Timing: Single post-treatment survey |
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| VARIABLE GLOSSARY: |
| - intended_behavior: Count of information links demanded (integer, 0-10) [OUTCOME] |
| - race_concord: Physician race matches respondent race (binary: 0/1) [EXPOSURE] |
| - birx: Dr. Birx social distancing video (binary: 0/1) |
| - elephant1: Acknowledgement video type 1 (binary: 0/1) |
| - elephant2: Acknowledgement video type 2 (binary: 0/1) |
| - debiasing: Stigma debiasing mask video (binary: 0/1) |
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