This is because there is an important distinction between bilingualism and biculturalism.
And, in 2012, de Bruin enrolled in the psychology graduate program at the University of Edinburgh to further pursue the link between bilingualism and cognition.
Evidence exists supporting relationships between bilingualism and many cognitive factors.
"This makes the study of the relationship between bilingualism and cognition one of our highest priorities".
However, there was sufficient evidence to support the existence of a curvilinear relationship between bilingualism and critical thinking disposition.
It never enjoyed neither broad nor whole-hearted support, however, and becomes increasingly questioned in the 1990s until the early 2000s when the causal framework is no longer believed to support the normative, i.e. the positive correlation between bilingualism and integration.
However, census data is too blunt and too broad to understand the nuanced relationship between bilingualism and the economy.
Four lines of research will be reviewed in the following sections, which have contributed to our understanding of the link between bilingualism and cognitive control abilities, i.e., the ability to flexibly adapt behavior to current demands by focusing on task-relevant information and behaviors over a period of time while dealing with interference and competition.
Findings failed to provide sufficient evidence to support the existence of a relationship between either bilingualism and critical thinking ability, or between critical thinking disposition and critical thinking ability.
It was however difficult to control for this, because the language of physician and aggregated population was not known and there is a lot of bilingualism along the borders between the two regions.
