Teaching Principal Components Using Correlations
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DOI: 10.1080/00273171.2017.1340824
Abstract: ABSTRACT Introducing principal components (PCs) to students is difficult. First, the matrix algebra and mathematical maximization lemmas are daunting, especially for students in the social and behavioral sciences. Second, the standard motivation involving variance maximization… read more here.
Keywords: components using; variance explained; unit length; variance ... See more keywords
Explaining the Variance in Cardiovascular Disease Risk Factors
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DOI: 10.1097/ede.0000000000001425
Abstract: Supplemental Digital Content is available in the text. Background: Efforts to explain the burden of cardiovascular disease (CVD) often focus on genetic factors or social determinants of health. There is little evidence on the comparative… read more here.
Keywords: variance; health; medicine; cardiovascular disease ... See more keywords
Development and Validation of a Chinese Version of a School-to-Work Transition Anxiety Scale for Healthcare Students
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DOI: 10.3390/ijerph18147658
Abstract: Objective: The aim of this paper was to develop an appropriate scale measuring healthcare students’ anxiety during the transition from school to work. Methods: After an extensive literature review and panel discussion to prove the… read more here.
Keywords: variance explained; transition; validity; school work ... See more keywords