The purpose of this study was to investigate predictors of metacognitive self-regulation for students in secondary vocational education. Drawing on research and theory characterizing writing as a complex skill, we analyzed students' reported metacognitive strategy use in relation to three writing genres: …

This letter to the editor argues that the assumption of a single value for the acetate recovery factor in carbon-13 stable isotope research for different individuals, can lead to significant errors in the outcomes of substrate utilization measurements.