Double jeopardy – Double remedy? The effectiveness of self-affirmation for improving doubly disadvantaged students' mathematical performance
Abstract
This study examines the effectiveness of a self-affirmation intervention to improve academic achievement for students with a "double-jeopardy status" of belonging to two potentially disadvantaged groups at the same time: girls with a minority background. The method established in the U.S. is adapted to the German cultural context and evaluated for its immediate and medium-term efficacy on math achievement among girls as well as among ethnic minority youth after the transition to secondary school. We applied a double-blind pre-post experimental design with randomized treatment allocation in 11 schools (N = 820, seventh graders with various ethnic backgrounds). Following the intervention of a brief in-class writing assignment about their personal values, students performed a standardized mathematics test. A follow-up achievement test, but no intervention, was administered eight weeks later to assess the midterm effectiveness of the treatment. Between assessments students received a written feedback about their scores in the math test. The multi-level linear model results show that (1) double-jeopardy in math performance exists, as shown by independent negative effects of female gender and Turkish or Arab minority group membership; (2) Girls from all ethnic backgrounds and students with Turkish immigrant background in the intervention group performed significantly better in the mathematics test immediately after the intervention than their peers in the control group. (3) Eight w…
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In Germany, values affirmation increased scores of school students from immigrant but not other backgrounds in an attainment test taken 8 weeks later.
“In this context, values affirmation increased the scores of school students from immigrant (but not other) backgrounds in an attainment test taken 8 weeks later (Lokhande & Müller, 2019).”
From Tackling Educational Inequalities with Social Psychology: Identities, Contexts, and Interventions (2021) · cites this paper as Lokhande & Müller, 2019
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Tackling Educational Inequalities with Social Psychology: Identities, Contexts, and Interventions
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“…that some researchers have successfully implemented affirmation activities that were described as coming from researchers—but they creatively adapted the affirmationmaterials to do so (Lokhande & Müller, 2019; for a discussion, see Sherman et al., 2021; Smith et al., 2021; Wu et al., 2021).”
BackgroundInfluentialEffectiveness of Self-Affirmation Interventions in Educational Settings: A Meta-Analysis
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Self-citationContext matters: Diagnosing and targeting local barriers to success at school
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“Our findings contrast to Müller and Lokhande’s (2017; Lokhande & Müller, 2019) study that had a very similar sample drawn from the same city and found their intervention to be effective for boosting math competence using the same measure.”
InfluentialMocevic, H., & Gniewosz, B. (2025) · Journal of Community Psychology · doi:10.1002/jcop.70065 · Cited by 2 · see citing works
“Studies using self ‐ affirmation interventions suggest that interventions may be more effective if they allow participants to self ‐ select the aspects of their personality that they find most important (e.g., Lokhande and Müller 2019).”
Supporting access and equity to mathematics in low-SES contexts: a systematic literature review
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“The work of Lokhande and Müller (2019) and Borman et al. (2016 ) reported some level of positive effect on the academic outcomes of minority students who may be subject to stereotype threat.”
InfluentialBuilding a Restorative Classroom
Alberts, C. (2026) · Mathematics Teacher · doi:10.5951/mtlt.2024.0292
Unveiling Vulnerability Determinants Among Migrant‐Background Students: A Systematic Review
Lisio, G. D., Fernández, M., & Serrano, I. (2025) · New Directions for Child and Adolescent Development · doi:10.1155/cad/2069119
The Effects of Affirmations on Middle Students with Difficulties in Math
Atlas, B. (2020) · Maryland Shared Open Access Repository (USMAI Consortium) · doi:10.13016/m2nchu-4sks
Han, F. (2026) · Open Journal of Social Sciences · doi:10.4236/jss.2026.144014
- Authors
- Lokhande, M., & Müller, T.
- Affiliations
- The Expert Council on Integration and Migration (DE)
- Humboldt-Universität zu Berlin (DE)
- Corresponding author
- Lokhande, Mohini
- Venue
- Journal of School Psychology
- Publisher
- Elsevier BV
- Published
- 2019-08
- Volume
- 75
- Pages
- 58-73
- ISSN
- 0022-4405 (ISSN-L)
- OpenAlex
- W2964413995
- Cited by
- 19
- References
- 0
- Citations by year
- 2026: 2 · 2025: 2 · 2024: 1 · 2023: 2 · 2022: 1 · 2021: 9 · 2020: 1 · 2019: 1
- FWCI
- 3.53
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Journal of School Psychology (publishedVersion)
- PubMed (publishedVersion)
- Funders
- Stiftung Mercator
- Topics
- Social Sciences › Psychology › Experimental and Cognitive Psychology › Education, Achievement, and Giftedness
- Social Sciences › Safety Research › Career Development and Diversity
- Social Sciences › Education › School Choice and Performance
- Keywords
- self-affirmation intervention, double jeopardy, mathematics achievement, ethnic minority students, gender and academic achievement, intervention effectiveness, high school mathematics
- MeSH terms
- Academic Performance, Adolescent, Child, Double-Blind Method, Ethnicity, Female, Humans, Male, Mathematics, Minority Groups, Schools, Self Concept, Students
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