“…Metacognitive strategies were also measured by self‐report questionnaire. However, according to recent literature, problem‐solving activities or online learning tasks can be used and generalized in all age groups to derive a better understanding of the relations of metacognitive processes to themselves and to other academic factors, as external and objective codification criteria can be used (Veenman, ; Veenman, Bavelaar, De Wolf, & Van Haaren, ). Finally, implementation of latent multilevel analysis should be considered in the future, as it helps minimize measurement error, allowing for the use of multiple indicators to control measurement error at the individual student and classroom levels (Lüdtke, Marsh, Robitzsch, & Trautwein, ; Morin et al ., ).…”