What was the primary goal of the study conducted by the authors?

The primary goal was to test performance on a series of executive function tasks in a carefully controlled study comparing Welsh-English bilinguals and monolinguals who grew up in the same context.

Source: Does language dominance affect cognitive performance in bilinguals? Lifespan evidence from preschoolers through older adults on card sorting, Simon, and metalinguistic tasks · DOI · quote verified

What was the developmental range of the seven participant age groups in this study?

The study utilized a lifespan developmental design, testing participants from 3 years of age up to those over 60 years of age.

Source: Does language dominance affect cognitive performance in bilinguals? Lifespan evidence from preschoolers through older adults on card sorting, Simon, and metalinguistic tasks · DOI · quote verified

How were the bilingual participants divided into sub-categories on the basis of home language exposure?

They were classified into three groups: only Welsh spoken at home (OWH), both Welsh and English spoken at home (WEH), and only English spoken at home (OEH).

Source: Does language dominance affect cognitive performance in bilinguals? Lifespan evidence from preschoolers through older adults on card sorting, Simon, and metalinguistic tasks · DOI · quote verified

What does the abbreviation "BICA" refer to in the literature on bilingual cognition?

It stands for the Bilingual Inhibitory Control Advantage, which claims that bilinguals perform better than monolinguals on tasks requiring selective cognitive inhibition.

Source: Does language dominance affect cognitive performance in bilinguals? Lifespan evidence from preschoolers through older adults on card sorting, Simon, and metalinguistic tasks · DOI · quote verified

How does the "Bilingual Executive Processing Advantage" (BEPA) differ from BICA?

BEPA refers to a global executive advantage that improves reaction times in both conflict (incongruent) and non-conflict (congruent) conditions, rather than just inhibitory control.

Source: Does language dominance affect cognitive performance in bilinguals? Lifespan evidence from preschoolers through older adults on card sorting, Simon, and metalinguistic tasks · DOI · quote verified

How are "congruent" and "incongruent" trials defined in a Simon task?

In congruent trials, the target stimulus appears on the same side of the screen as the response key. In incongruent trials, they appear on opposite sides, which typically increases response latency.

Source: Does language dominance affect cognitive performance in bilinguals? Lifespan evidence from preschoolers through older adults on card sorting, Simon, and metalinguistic tasks · DOI · quote verified

What are the core requirements for a participant in a dimensional change card sort task?

The participant must first sort a set of cards based on one attribute (such as color) and then successfully switch to sorting based on a different attribute (such as shape).

Source: Does language dominance affect cognitive performance in bilinguals? Lifespan evidence from preschoolers through older adults on card sorting, Simon, and metalinguistic tasks · DOI · quote verified

What four sentence categories were used in the metalinguistic judgment task?

The task used grammatical meaningful (GM), grammatical but anomalous (Gm), ungrammatical meaningful (gM), and ungrammatical anomalous (gm) sentences.

Source: Does language dominance affect cognitive performance in bilinguals? Lifespan evidence from preschoolers through older adults on card sorting, Simon, and metalinguistic tasks · DOI · quote verified

Which specific condition in the metalinguistic task was hypothesized to show a bilingual advantage due to high cognitive control demands?

The grammatical but anomalous (Gm) condition (e.g., "Why is the cat barking so loudly?") was hypothesized to show an advantage because meaning must be suppressed.

Source: Does language dominance affect cognitive performance in bilinguals? Lifespan evidence from preschoolers through older adults on card sorting, Simon, and metalinguistic tasks · DOI · quote verified

From which geographic regions were the bilingual and monolingual participants recruited?

Bilingual participants were recruited from North Wales, while monolingual participants were recruited from Chester, located just across the Welsh border in England.

Source: Does language dominance affect cognitive performance in bilinguals? Lifespan evidence from preschoolers through older adults on card sorting, Simon, and metalinguistic tasks · DOI · quote verified

How was the switch "cost" operationalized in the analysis of the card sorting tasks?

Switch cost was calculated by taking the difference in performance (accuracy or reaction times) between the first sort and the second sort.

Source: Does language dominance affect cognitive performance in bilinguals? Lifespan evidence from preschoolers through older adults on card sorting, Simon, and metalinguistic tasks · DOI · quote verified

In the card sort accuracy analysis, which age group was the only one to show a significant difference by home language?

The teenager group was the only group to show a significant home language difference, with the OWH (Only Welsh at Home) group outperforming the MonE and WEH groups.

Source: Does language dominance affect cognitive performance in bilinguals? Lifespan evidence from preschoolers through older adults on card sorting, Simon, and metalinguistic tasks · DOI · quote verified

What did the card sorting reaction time analysis reveal regarding home language differences?

There were no significant differences in card sorting switch cost reaction times based on home language across any of the groups.

Source: Does language dominance affect cognitive performance in bilinguals? Lifespan evidence from preschoolers through older adults on card sorting, Simon, and metalinguistic tasks · DOI · quote verified

Did the absolute card sort scores support a global bilingual executive processing advantage (BEPA)?

No. In most childhood age groups and younger adults, monolinguals or English-dominant bilinguals actually outperformed the more balanced or Welsh-dominant bilinguals.

Source: Does language dominance affect cognitive performance in bilinguals? Lifespan evidence from preschoolers through older adults on card sorting, Simon, and metalinguistic tasks · DOI · quote verified

How were children's responses captured in the preschool version of the Simon task?

They touched a button depicting a rabbit (bottom left) or a pig (bottom right) on a touchscreen based on which animal appeared sitting on a rock.

Source: Does language dominance affect cognitive performance in bilinguals? Lifespan evidence from preschoolers through older adults on card sorting, Simon, and metalinguistic tasks · DOI · quote verified

What stimuli and response mechanisms were used in the adult version of the Simon task?

Participants saw blue or red squares on either side of the screen and were required to press the 'Q' key for blue and 'P' key for red.

Source: Does language dominance affect cognitive performance in bilinguals? Lifespan evidence from preschoolers through older adults on card sorting, Simon, and metalinguistic tasks · DOI · quote verified

Were there any home language effects on accuracy in the Simon task for preschoolers?

No, the analysis found no significant accuracy differences based on home language among the 3-, 4-, and 5-year-old cohorts.

Source: Does language dominance affect cognitive performance in bilinguals? Lifespan evidence from preschoolers through older adults on card sorting, Simon, and metalinguistic tasks · DOI · quote verified

What did the preschooler Simon task reaction time results reveal about monolingual speed?

Monolinguals were significantly faster overall than OEH (Only English at Home) children and nearly significantly faster than WEH bilinguals.

Source: Does language dominance affect cognitive performance in bilinguals? Lifespan evidence from preschoolers through older adults on card sorting, Simon, and metalinguistic tasks · DOI · quote verified

Which Simon task home language accuracy pattern was identified in the teenager group?

Pairwise comparisons showed that MonE (Monolingual English) participants performed more accurately than OWH (Only Welsh at Home) bilinguals.

Source: Does language dominance affect cognitive performance in bilinguals? Lifespan evidence from preschoolers through older adults on card sorting, Simon, and metalinguistic tasks · DOI · quote verified

In which age group did bilinguals perform more accurately than monolinguals on the Simon task?

Bilinguals demonstrated an accuracy advantage in the older adults group, where MonE participants performed less well than all three bilingual groups.

Source: Does language dominance affect cognitive performance in bilinguals? Lifespan evidence from preschoolers through older adults on card sorting, Simon, and metalinguistic tasks · DOI

What were the Simon task reaction time results for younger adults?

Monolingual English participants were significantly faster overall than both the WEH (bilingual) and OWH (Welsh-dominant) participants.

Source: Does language dominance affect cognitive performance in bilinguals? Lifespan evidence from preschoolers through older adults on card sorting, Simon, and metalinguistic tasks · DOI · quote verified

What pattern of home language effects emerged on the English metalinguistic task?

OEH participants performed significantly better overall on the English metalinguistic task than their WEH and OWH bilingual peers.

Source: Does language dominance affect cognitive performance in bilinguals? Lifespan evidence from preschoolers through older adults on card sorting, Simon, and metalinguistic tasks · DOI · quote verified

What home language pattern emerged on the Welsh metalinguistic task?

Both OWH and WEH participants significantly outperformed OEH participants overall, indicating that greater exposure to Welsh at home aided task performance.

Source: Does language dominance affect cognitive performance in bilinguals? Lifespan evidence from preschoolers through older adults on card sorting, Simon, and metalinguistic tasks · DOI · quote verified

In the English metalinguistic task, how did OWH primary schoolers perform on the gM (ungrammatical meaningful) sentences?

OWH children, who had Welsh as their dominant home language, performed significantly lower than their OEH peers.

Source: Does language dominance affect cognitive performance in bilinguals? Lifespan evidence from preschoolers through older adults on card sorting, Simon, and metalinguistic tasks · DOI · quote verified

On which Welsh metalinguistic task condition did home language differences emerge?

Home language groups differed only on the ungrammatical meaningful (gM) condition, with OWH participants outperforming OEH participants.

Source: Does language dominance affect cognitive performance in bilinguals? Lifespan evidence from preschoolers through older adults on card sorting, Simon, and metalinguistic tasks · DOI · quote verified

Did the metalinguistic task results support a bilingual cognitive control advantage in the Gm condition?

No, the results failed to show a bilingual advantage overall or in the critical grammatical but anomalous (Gm) condition across all age groups.

Source: Does language dominance affect cognitive performance in bilinguals? Lifespan evidence from preschoolers through older adults on card sorting, Simon, and metalinguistic tasks · DOI · quote verified

What is the overall main conclusion of this study regarding the bilingual cognitive advantage?

This lifespan study fails to support an overall bilingual advantage on card sorting, Simon, or metalinguistic tasks at any of the seven ages tested.

Source: Does language dominance affect cognitive performance in bilinguals? Lifespan evidence from preschoolers through older adults on card sorting, Simon, and metalinguistic tasks · DOI · quote verified

How did the authors argue that the tasks utilized in the study were valid, despite the null findings for a bilingual advantage?

The tasks elicited all other predicted robust effects, such as age-related improvements, congruent advantages, and typical differences in grammatical sentence processing.

Source: Does language dominance affect cognitive performance in bilinguals? Lifespan evidence from preschoolers through older adults on card sorting, Simon, and metalinguistic tasks · DOI · quote verified

Why might simultaneous bilinguals demonstrate less demand for executive control compared to late L2 bilinguals?

Because simultaneous bilinguals have high automaticity in both languages, making their language switching and use highly natural and less effortful than for L2 learners.

Source: Does language dominance affect cognitive performance in bilinguals? Lifespan evidence from preschoolers through older adults on card sorting, Simon, and metalinguistic tasks · DOI · quote verified

How does a computational model of language explain bilingual language use differently than a modular model?

A computational model views bilingual processing as the activation of links within and across languages, with both languages continually active, rather than switching between separate modules.

Source: Does language dominance affect cognitive performance in bilinguals? Lifespan evidence from preschoolers through older adults on card sorting, Simon, and metalinguistic tasks · DOI · quote verified

What feature of the participant sample made this study uniquely well-controlled?

The bilingual and monolingual participants were highly homogeneous in their cultural, educational, and socioeconomic backgrounds.

Source: Does language dominance affect cognitive performance in bilinguals? Lifespan evidence from preschoolers through older adults on card sorting, Simon, and metalinguistic tasks · DOI · quote verified

Why must researchers strictly control for socioeconomic status (SES) in studies on bilingual cognition?

SES has been shown to exert profound cognitive and neurological effects on attention in children, which could act as a confounding variable.

Source: Does language dominance affect cognitive performance in bilinguals? Lifespan evidence from preschoolers through older adults on card sorting, Simon, and metalinguistic tasks · DOI · quote verified

According to Paap and Greenberg, what cognitive control demands do monolinguals experience during normal language production?

They must constantly make word choices among many activated semantic and syntactic candidates (such as synonyms or hypernyms) and suppress irrelevant meanings.

Source: Does language dominance affect cognitive performance in bilinguals? Lifespan evidence from preschoolers through older adults on card sorting, Simon, and metalinguistic tasks · DOI · quote verified

What did Duñabeitia et al. discover when testing matched bilingual and monolingual children on Stroop tasks?

They consistently found no significant differences in performance between monolingual and bilingual children on either verbal or numerical Stroop tasks.

Source: Does language dominance affect cognitive performance in bilinguals? Lifespan evidence from preschoolers through older adults on card sorting, Simon, and metalinguistic tasks · DOI · quote verified

What methodological concern did Adesope et al. express regarding the published literature on the bilingual advantage?

They cautioned that there may be a publication bias that prevents studies showing null or negative bilingual effects from being published.

Source: Does language dominance affect cognitive performance in bilinguals? Lifespan evidence from preschoolers through older adults on card sorting, Simon, and metalinguistic tasks · DOI · quote verified

Does bilingualism actually improve executive brain functions?