The purpose of this study was to investigate the potential long-term association of motor skill proficiency at 6 years of age and self-reported physical activity (PA) at age 26. Direct motor performance data were collected in 1991 with a follow-up study occurring in 1996, and then indirect questionnaires (self-report) administered in 2001 and 2011. In 2011, 17 participants who were identified a...

Deep Thought is a logic tutor where students practice constructing deductive logic proofs. Within Deep Thought is a data-driven mastery learning system (DDML), which calculates student proficiency based on rule scores weighted by expert-decided weights in order to assign problem sets of appropriate difficulty. In this study, we designed and tested a data-driven proficiency profiler (DDPP) metho...

This paper addresses the effect of English proficiency on economic growth empirically with Barro-type cross-sectional growth regression. The empirical results provide evidence of positive correlation between initial English proficiency and economic growth only for the countries in the Asia and Europe. Therefore, countries with higher levels of English proficiency among the fraction of its popul...

We investigated the influence of English proficiency on ERPs elicited by lexical semantic violations in English sentences, in both native English speakers and native Spanish speakers who learned English in adulthood. All participants were administered a standardized test of English proficiency, and data were analyzed using linear mixed effects (LME) modeling. Relative to native learners, late l...

This paper studies the effects of English proficiency on employment of U.S. foreign-born immigrants, using data from the 2001 American Community Survey (ACS). It shows that English proficiency plays an important role in immigrants’ employment and its effects on employment patterns across genders are different. Probit regressions show that immigrants with a higher level of English proficiency ar...

Relative hand preferences as indicated by questionnaire were compared with asymmetries in manual proficiency at three levels of task difficulty (N equal to 63 adults). Correlations between odd/even trial relative hand proficiency scores were .887 and .879 attesting to their stability. Test-retest (6-wk. interval) reliabilities for relative hand proficiency ranged from .831 to .893. Spearman rbo...

Automaticity and real-time aspects of performance are directly relevant to L2 spoken language proficiency. This paper analyzes data from L2 speakers of English and Spanish spread over a range of proficiency levels as identified by traditional holistic, rubric-based human ratings. In spontaneous speech samples from these L2 populations, we studied timed measures of spoken fluency (linguistic uni...

This paper broadly elaborated the concept, significance and main strategy of cross disciplinary proficiency learning as well as the basic structure of cross disciplinary proficiency learning system. By combining several basic ideas of main strategies, great effort are laid on introducing several cross disciplinary proficiency learning methods, such as Memorizing a type of learning, Reason–based...

abstract norton’s (1995) investment hypothesis in l2 learning that l2 learners who cherish and foresee a richer personality for themselves in their l2 context would thrive more diligently and consequently would both enrich their personality and achieve a higher proficiency in their new language was investigated in this study in the community of iranian efl students. the integration and mutual r...