selection effect
[/sɪˈlɛkʃən ɪˈfɛkt/]
nounpl: selection effects
efeito de seleção
1. A bias that occurs when the sample studied is not representative of the population being analyzed, resulting from the way subjects are selected for inclusion
The study suffered from a selection effect because it only surveyed people who volunteered to participate.
O estudo sofreu de um efeito de seleção porque pesquisou apenas pessoas que se ofereceram voluntariamente para participar.
2. In statistics and research, a distortion in results caused by non-random selection of subjects or data points
Without accounting for selection effect, the researchers concluded that the treatment was more effective than it actually was.
Sem levar em conta o efeito de seleção, os pesquisadores concluíram que o tratamento era mais eficaz do que realmente era.
3. In evolutionary biology and economics, the impact on observed outcomes caused by the differential survival or success of different groups
The high salaries of college graduates may partly reflect a selection effect rather than the true value of education.
Os altos salários dos graduados universitários podem refletir parcialmente um efeito de seleção em vez do verdadeiro valor da educação.
This is a technical term primarily used in academic, scientific, and statistical contexts in both Brazil and the USA. It is essential in research methodology, economics, epidemiology, and social sciences. The concept has gained prominence in discussions about data analysis and causal inference, particularly in academic institutions and professional research settings. Understanding selection effects is crucial for critical evaluation of studies and surveys in contemporary educational and professional contexts.
Related Idioms & Phrases
survivor bias is a type of selection effect
accounting for selection effects
selection effect confounds the results
Look up more words on Fala2Me
The free English-Portuguese dictionary with real Brazilian accents, NYC slang, conjugator and more
Open Fala2Me →