Muy bajo impacto, Muy bajo costo, Evidencia muy escasa
School uniform is the clothing pupils are required to wear at school. Uniforms vary from the very formal (requiring blazers) to more informal (involving just a school sweatshirt). Schools have uniforms in different styles and colours to identify pupils as attending a particular institution. Uniforms are required in most schools in the UK.
Search Terms: school uniform
There are no systematic reviews or meta-analyses of well-controlled interventions of a school uniform policy. The evidence rests mainly on correlational studies that have compared the performance of schools with uniforms to those without, or that have examined a school's trajectory of improvement after the introduction of school uniform. The most rigorous reviews and analyses have so far been unable to establish a causal link, but speculate that adoption of a uniform policy may provide a symbolic and public commitment to school improvement. Overall, the evidence is rated as very limited.
The costs associated with introducing a school uniform are very low and mainly depend on parents buying the uniform instead of other clothing the child would wear.
Journal of Educational Research 92 pp 53-62
Journal of Educational Research 97.2 pp 72-77
PhD thesis submitted to the faculty of Brigham Young University, Salt Lake City, Utah
PhD dissertation University of Alabama at Birmingham
Doctoral dissertation, Liberty University
Educational Policy, 23(6), 847-874
Summary of effects
|Meta-analyses||Effect size||FSM effect size|
|Samuels, K.S. (2003)||
|Sowell, R. E. (2012)||
|Yeung, R. (2009)||
|Median effect size||0.01|
The right hand column provides detail on the specific outcome measures or, if in brackets, details of the intervention or control group.