TABLE 2.
Demographics by course and sample
| Demographica | BSC | BI 125 | BI 125 CAT sampleb | BI 225 | BI 225 CAT sampleb | BI/CH 308 | BI/CH 308 CAT sampleb |
|---|---|---|---|---|---|---|---|
| N | 1337 | 52 | 29 | 27 | 19 | 21 | 18 |
| Woman | 664 (50%) | 32 (62%) | 17 (59%) | 13 (48%) | 8 (42%) | 8 (38%) | 5 (28%) |
| URMc | 206 (15%)d | 3 (6%) | 2 (7%) | 3 (11%) | 3 (16%) | 2 (10%) | 2 (11%) |
| Hispanic | 28 (2%) | 2 (4%) | 0 (0%) | 0 (0%) | 0 (0%) | 0 (0%) | 0 (0%) |
| ACT (mean ± SD) | 26.0 | 28.3 ± 3.4 | 28.1 ± 3.7 | 27.2 ± 3.6 | 26.7 ± 3.7 | 29.8 ± 3.4 | 30.0 ± 3.4 |
| Freshman | 504 (38%) | 35 (67%) | 21 (72%) | 1 (4%) | 1 (5%) | 0 (0%) | 0 (0%) |
| Sophomore | 334 (25%) | 13 (25%) | 7 (24%) | 8 (30%) | 6 (32%) | 0 (0%) | 0 (0%) |
| Junior | 305 (23%) | 4 (8%) | 1 (3%) | 14 (52%) | 8 (42%) | 18 (82%) | 14 (78%) |
| Senior | 198 (15%) | 0 (0%) | 0 (0%) | 4 (15%) | 4 (21%) | 4 (18%) | 4 (22%) |
| Declared STEM majore | ∼25%f | 42 (81%) | N/Ag | 24 (89%) | N/Ag | 22 (100%) | N/Ag |
aDemographics based on total enrollment at the beginning of the Fall 2015 semester.
bPaired pretests and posttests were selected at random from each class.
cURM, underrepresented minority.
dInstitutional data do not include Pacific Islander students due to consolidation with Asian students in the original data set.
eSTEM majors included biology, chemistry, mathematics, physics, and interdisciplinary urban environmental studies.
fApproximately 25% of first-year student express an interest in STEM fields according to student surveys.
gN/A, data not available.