control group
[/kənˈtroʊl ɡruːp/]
nounpl: control groups
grupo de controle
1. In scientific research, a group of subjects or units that do not receive the experimental treatment, used as a baseline for comparison with the experimental group
The researchers divided the participants into a treatment group and a control group to test the effectiveness of the new drug.
Os pesquisadores dividiram os participantes em um grupo de tratamento e um grupo de controle para testar a eficácia do novo medicamento.
2. A reference group used in experiments to establish that observed changes are due to the variable being tested rather than other factors
Without a control group, it is impossible to determine if the results were caused by the intervention.
Sem um grupo de controle, é impossível determinar se os resultados foram causados pela intervenção.
The concept of control groups is fundamental to scientific methodology in both Brazilian and American research practices. In academic and pharmaceutical contexts in Brazil, the term 'grupo de controle' is standardized and essential in all formal research documentation. The distinction between experimental and control groups is a cornerstone of evidence-based practices in medicine, psychology, and social sciences across both cultures.
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