non-random section
[non-ˈran-dəm ˈsek-shən]
nounpl: non-random sections
seção não aleatória
1. A portion or part of a whole that is deliberately selected or organized according to specific criteria rather than by chance
The researcher analyzed a non-random section of the population to study the effects of the new policy.
O pesquisador analisou uma seção não aleatória da população para estudar os efeitos da nova política.
2. In statistics and research methodology, a subset chosen through purposive or stratified sampling rather than random selection
The non-random section of participants was selected based on specific demographic characteristics.
A seção não aleatória de participantes foi selecionada com base em características demográficas específicas.
3. In data analysis or document review, a predetermined or filtered portion rather than an unbiased sample
They examined a non-random section of files that met certain quality criteria.
Eles examinaram uma seção não aleatória de arquivos que atendiam a certos critérios de qualidade.
This term is primarily used in academic, scientific, and research contexts in both Brazil and the USA. It reflects methodological discussions about sampling techniques and data validity in quantitative and qualitative research, particularly important in social sciences, market research, and statistical analysis.
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