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?

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.

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

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)