De-identified participant identifier
Mentoring Quality strict score: mean MQ1-MQ5
Peer Research Support score: mean PRS1-PRS4
Research Resource Adequacy formative descriptive mean
Structural Barrier Load formative descriptive mean
Research Self-Efficacy score: mean RSE1-RSE6
Academic Belonging strict score: mean BEL1-BEL4
Academic Research Engagement descriptive score
Graduate Research Burnout descriptive score
Persistence Intentions strict score: mean PI1-PI4
Graduate degree type
Enrollment status
Primary program modality
Completed graduate methods/statistics courses
Typical weekly paid-work hours outside research role
First-generation college student
International student at a U.S. institution
Regular caregiving responsibilities
Regression dummy: research doctorate/PhD (1) vs master's (0)
Regression dummy: part-time (1) vs full-time (0)
Regression dummy: hybrid (1) vs primarily in-person reference