Descriptive Statistics for Variables in the Study

Variable Name	Mean	SD	Min.	Max.
Outcome Variable
Persistence in a biomedical or behavioral science (BBS) major	0.68	0.47	0.00	1.00
Background Characteristics
Female	0.74	0.41	0.00	1.00
African American/Black	0.55	0.50	0.00	1.00
American Indian	0.07	0.26	0.00	1.00
Latina/o	0.37	0.48	0.00	1.00
Years of high school biology	3.73	1.08	1.00	7.00
High school GPA	6.51	1.37	1.00	8.00
SAT composite	10.75	1.50	6.40	15.30
Father’s education	4.73	2.12	1.00	8.00
Mother’s education	5.01	2.02	1.00	8.00
Parental income	7.22	3.26	1.00	14.00
Concern about financing college education	2.04	0.66	1.00	3.00
Psychology major	0.24	0.43	0.00	1.00
Self-rated academic ability	4.00	0.68	2.00	5.00
College Experiences
Academic adjustment	0.00	1.00	−2.50	2.12
Positive cross-racial interactions	0.00	1.00	−2.15	1.87
Sense of belonging on campus	0.00	1.00	−2.07	2.11
Joined pre-professional/departmental club	0.25	0.43	0.00	1.00
Received negative feedback about academic work from professor	2.05	0.73	1.00	4.00
Received advice about educational program from a professor	2.24	0.92	1.00	4.00
Received emotional support from a professor	1.91	0.93	1.00	4.00
Key Factors Based on Stereotype Threat Theory
Domain identification	0.00	1.00	−2.01	1.68
Negative racial experiences	0.00	1.00	−1.30	4.38
Interaction Terms
Domain identification × high frequency of negative racial experiences	0.00	0.50	−2.01	1.68
Domain identification × medium frequency of negative racial experiences	−0.03	0.55	−2.01	1.68
Institutional Characteristics
Private	0.53	0.50	0.00	1.00
Research expenditures (log)	13.22	6.78	0.00	20.55
Percentage of bachelor’s degrees awarded in BBS majors	14.09	7.54	4.65	62.53
Undergraduate FTE (log)	8.49	1.01	6.06	10.44
Institutional selectivity	11.06	1.42	7.80	14.25

Source. Data are from the Cooperative Institutional Research Program 2004 Freshman Survey, 2005 Your First College Year survey, and 2004–2005 Integrated Postsecondary Education Data System.