Participants randomized to baseline (control) arm Condition 1 will view only combined transplant survival outcome information (e.g. transplant survival rate not stratified by number and quality of donor hearts accepted at each center) when making a choice between the two hospitals. The "survival following transplant" metric is displayed as a survival rate pictograph corresponding to all patients at the center who received transplants.

Participants randomized to Condition 2 will view only stratified transplant survival outcome information when making a choice between the two hospitals. The "survival following transplant" metric is displayed as a pair of survival rate pictographs corresponding to two distinct groups of transplant patients at the center: those who received optimal donor organs and those who received adequate donor organs.

Participants randomized to Condition 3 will view only combined transplant survival outcome information (e.g. transplant survival rate not stratified by number and quality of donor hearts accepted at each center) when making a choice between the two hospitals. The "survival following transplant" metric is displayed as a quintile score corresponding to all patients at the center who received transplants.

Both transplant metric conditions display the number of hearts offered to each center, the number of hearts accepted by each center, and the number of transplants performed at each center (in a year), in addition to the condition-specific metrics below. The stratified condition instead features a pair of values corresponding to each center's offers/acceptances/transplant survival rates for donor hearts of "optimal" or "adequate" quality.

The outcome variable will be a measure of binary choice between two hospitals: one with a selective donor-heart acceptance strategy and one with a non-selective donor heart acceptance strategy.

Participants will respond to the question "Which Hospital is higher performing? Please click on one of the two tables below to indicate which hospital is the better choice." Participants will choose been two outcome tables featuring the selective and non-selective hospital (counterbalanced, such that each of the two choices is equally likely to be presented at top of the choice scenario in each condition). The number of participants that choose each hospital will be the measured outcome variable used in analyses.

On the next page of the survey, participants will respond to three mediator questions: "There are many reasons why one transplant hospital might outperform another. Which reasons were most important in your decision? Please move the slider to indicate how much you considered each of the reasons below (0=reason was not important, 100=reason was extremely important)."

Participants will then move a slider bar (0-100) to indicate the importance of the following three items:

Patients were more likely to receive an excellent donor heart at the hospital I picked.

Patients were less likely to receive a marginal donor heart at the hospital I picked.

Patients were more likely to receive any kind of heart at the hospital I picked.

The third item (more likely to receive any kind of heart) will be the only variable that is included in the planned mediation analysis.