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The Cognitive-Affective Theory of Learning with Media postulates that affective factors as well as individual learner characteristics impact multimedia learning. The present study investigated how experimentally induced positive and negative emotions influence multimedia learning and how learner characteristics moderated this impact. Results showed that the group with the negative emotion induction outperformed the group with the positive emotion induction with regard to learning outcome. Cognitive resources (working memory capacity, prior knowledge) and openness to experience were significant predictors for learning. In addition, learners with highest prior knowledge or working memory capacity could compensate the emotional impact on learning. Neuroticism enhanced the emotional impact on learning outcome as a moderator.

This study investigates music-related argumentation in different music genres (rock/pop versus classical music) applying a mixed-methods design with three groups (referred to as novices, semiexperts and experts). Participants were asked to compare two versions of a musical piece and justify their preference in individually written argumentation. Arguments were coded by applying a category system with four main categories, namely, attributes of the musical piece, subjective dimensions, context-specific background knowledge and media-related dimensions. Results of quantitative analyses showed that experts formulated longer arguments, referring to more different categories and mentioning more aspects within these categories. Further, a larger proportion of the experts' arguments referred to context-specific background knowledge and attributes of the musical piece, whereas semi-experts' and novices' argumentation consisted to a larger extent of subjective dimensions. For all analyses, there were no differences concerning the two different music genres. A discriminant analysis showed that the participants' ascribed level of expertise was correctly predicted on the basis of their argumentation in 97.3% of the cases. Therefore, the category system provides an effective instrument for representing and evaluating music-related argumentation. Our findings illustrate quantitative and qualitative differences between arguments and build a starting point for developing innovative intervention approaches for fostering music-related argumentation.We talk about music frequently: after a concert, at an album release or when making music. We compare musical pieces of specific music genres or artists and we argue about different versions of musical pieces by various interpreters. If our interlocutor has a different opinion we may