Abstract
I investigate the impact of standardized test classifications on students' college major decisions. Focusing on Texas' STAAR Algebra I exam, which categorizes students into tiers based on performance, I examine whether these classifications influence self-perception and academic choices. Using a regression discontinuity design, the causal effect of being classified just above or below the threshold on high school graduation, college enrollment, and STEM major choice. I find no significant discontinuities at the classification cutoff, suggesting that these labels do not affect student choices. Further analysis on subgroups, including high and low STEM areas, grade at which a student takes the exam, and race, gender, and socio-economic status, reveals no patterns based on these factors. These results may imply that students do not place any weight on standardized test exam results, and that other factors play a more pivotal role in their decision-making