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Sergio Barrera

Biographic Data

ID5808191
NAMESergio Barrera
GIVEN NAMESSergio
FAMILY NAMEBarrera
SIGNATUREBARRERA S
AFFILIATIONSVirginia Tech
ORCID0000-0002-3318-1931
VERIFIEDYes
TOTAL WORKS3
TOTAL CITATIONS4
WORKS AS AUTHOR3
WORKS AS EDITOR0
FIRST PUBLICATION YEAR2024
LATEST PUBLICATION YEAR2025
H-INDEX1
  • Understanding the Effects of a Math Placement Exam on Calculus 1 Enrollment and Engineering Persistence

    Open Access•Olivia Ryan, Susan Sajadi et al.•ARTICLE•Education Sciences•2025

    Educational institutions are grappling with declining enrollments and low mathematical achievements. This study investigates how a math placement exam (ALEKS) influences enrollment in Calculus 1 and student persistence, taking into account academic preparation and demographic factors. It also evaluates the effects of remedial math courses for students near the placement cutoff. Using Astin’s input–environment–outcome model, this study analyzed da…

  • The impact of World War II Army service on income and mobility in the 1960s by ethnoracial group

    Open Access•Sergio E Barrera, Sergio Barrera et al.•ARTICLE•Explorations in Economic History•2025•Cited by: 4•References: 25

    We link the 1940 full-count Census to World War II enlistment records and 1969 administrative tax returns to study how WWII service in the Army and Army Airforce impacted the income and mobility of non-Hispanic White, Black, Hispanic, Asian, and Native American male Army veterans relative to their non-Army counterparts in 1969. The size of our data set provides enough power to shed new light on previously understudied groups, such as Hispanics, A…

  • Valuing Identity in the Classroom

    Open Access•Sergio Barrera, Susan Sajadi et al.•ARTICLE•The Journal of Economic…•2024

    Economics faces stubborn underrepresentation of minoritized identity groups. Economics instructors also largely use antiquated instructional methods. We leverage the literature from the fields of science, technology, engineering, and mathematics education, which have rigorously studied instructional techniques and gathered evidence on a variety of methods that improve learning and reduce demographic gaps. We discuss four broad ideas: active and c…

  • The impact of World War II Army service on income and mobility in the 1960s by ethnoracial group

    Open Access•Sergio E Barrera, Sergio Barrera et al.•ARTICLE•Explorations in Economic History•2025•Cited by: 4•References: 25

    We link the 1940 full-count Census to World War II enlistment records and 1969 administrative tax returns to study how WWII service in the Army and Army Airforce impacted the income and mobility of non-Hispanic White, Black, Hispanic, Asian, and Native American male Army veterans relative to their non-Army counterparts in 1969. The size of our data set provides enough power to shed new light on previously understudied groups, such as Hispanics, A…

  • Valuing Identity in the Classroom

    Open Access•Sergio Barrera, Susan Sajadi et al.•ARTICLE•The Journal of Economic…•2024

    Economics faces stubborn underrepresentation of minoritized identity groups. Economics instructors also largely use antiquated instructional methods. We leverage the literature from the fields of science, technology, engineering, and mathematics education, which have rigorously studied instructional techniques and gathered evidence on a variety of methods that improve learning and reduce demographic gaps. We discuss four broad ideas: active and c…

  • Understanding the Effects of a Math Placement Exam on Calculus 1 Enrollment and Engineering Persistence

    Open Access•Olivia Ryan, Susan Sajadi et al.•ARTICLE•Education Sciences•2025

    Educational institutions are grappling with declining enrollments and low mathematical achievements. This study investigates how a math placement exam (ALEKS) influences enrollment in Calculus 1 and student persistence, taking into account academic preparation and demographic factors. It also evaluates the effects of remedial math courses for students near the placement cutoff. Using Astin’s input–environment–outcome model, this study analyzed da…

  • The impact of World War II Army service on income and mobility in the 1960s by ethnoracial group

    Open Access•Sergio E Barrera, Sergio Barrera et al.•ARTICLE•Explorations in Economic History•2025•Cited by: 4•References: 25

    We link the 1940 full-count Census to World War II enlistment records and 1969 administrative tax returns to study how WWII service in the Army and Army Airforce impacted the income and mobility of non-Hispanic White, Black, Hispanic, Asian, and Native American male Army veterans relative to their non-Army counterparts in 1969. The size of our data set provides enough power to shed new light on previously understudied groups, such as Hispanics, A…

Computer Science (2 works) · Engineering (2 works) · Mathematics education (2 works) · Advanced Placement (1 work) · Archaeology (1 work) · Business (1 work) · Demographic economics (1 work) · Demography (1 work) · Demography (1 work) · Economics (1 work)

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