The variability effect occurs when learners' exposure to highly variable tasks results in better learning. It was hypothesised that learners who studied high variability worked examples would obtain higher post-test scores compared to learners who studied low variability examples, and learners who self-generated problem solutions for the same high…

This study investigates the potential of five factors that may be predictive of success in college general chemistry courses: prior knowledge of common alternate conceptions, intelligence, scientific reasoning ability, proportional reasoning ability, and attitude toward chemistry. We found that both prior knowledge and scientific reasoning ability…

Asserts that most research into the effects of high school economics curriculum upon performance in college level economics courses fails to consider that secondary economics education rarely teaches micro- and macroeconomic concepts. Discovers that any gap in learning between students in economics is narrowed by the first semester in college.…