Background: Cattell's "Gf-Gc" distinction is quite generally recognized. However, the developmental part of the "Gf-Gc" theory of intelligence has not gained the same recognition. Results are inconsistent, but recent discussions emphasize the importance of homogeneity of samples with regard to education and language when…

As the United States experiences greater income inequality, more and more students experience an early science achievement gap. This study tested several competing theoretical models of early science achievement with a longitudinal sample of 14,624 children who were followed from kindergarten entry to the end of 1st grade. To understand why and…

This research explores communicative influences on cognitive learning and educational affect in online and offline courses limited to only enrolled students. A survey was conducted of students (N = 147) enrolled in online and offline courses within a single department during Summer, 2013. Respondents were asked about their classroom communication…