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Is This Information Source Commercially Biased? How Contradictions between Web Pages Stimulate the Consideration of Source Information
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Kammerer, Yvonne; Kalbfell, Eva; Gerjets, Peter – Discourse Processes: A multidisciplinary journal, 2016
In two experiments we systematically examined whether contradictions between two web pages--of which one was commercially biased as stated in an "about us" section--stimulated university students' consideration of source information both during and after reading. In Experiment 1 "about us" information of the web pages was…
Descriptors: Information Sources, Bias, Web Sites, Experiments
Information Comparisons in Example-Based Hypermedia Environments: Supporting Learners with Processing Prompts and an Interactive Comparison Tool
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Gerjets, Peter; Scheiter, Katharina; Schuh, Julia – Educational Technology Research and Development, 2008
Global comparisons of learning from hypertext/hypermedia and traditional presentation formats like text have yet failed to show major advantages concerning the effectiveness of hypermedia learning. Thus, it is proposed in the current paper to evaluate hypermedia environments more specifically with regard to their potential to implement and support…
Descriptors: Task Analysis, Hypermedia, Experiments, Schemata (Cognition)
The Speaker/Gender Effect: Does the Speaker's Gender Matter when Presenting Auditory Text in Multimedia Messages?
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Linek, Stephanie B.; Gerjets, Peter; Scheiter, Katharina – Instructional Science: An International Journal of the Learning Sciences, 2010
Current cognitive multimedia design theories provide several guidelines on how to integrate verbal and pictorial information. However, the recommendations for the design of auditory texts (narrations) are still fragmentary, especially with regard to the characteristics of the voices used. In the current paper, a fundamental question is addressed,…
Descriptors: Cognitive Processes, Probability, Mathematics Instruction, Gender Differences
The Effects of Realism in Learning with Dynamic Visualizations
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Scheiter, Katharina; Gerjets, Peter; Huk, Thomas; Imhof, Birgit; Kammerer, Yvonne – Learning and Instruction, 2009
Two experiments are reported that investigated the relative effectiveness of a realistic dynamic visualization as opposed to a schematic visualization for learning about cell replication (mitosis). In Experiment 1, 37 university students watched either realistic or schematic visualizations. Students' subjective task demands ratings as well as…
Descriptors: Multiple Choice Tests, Prior Learning, Visual Aids, Visualization
The Acquisition of Problem-Solving Skills in Mathematics: How Animations Can Aid Understanding of Structural Problem Features and Solution Procedures
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Scheiter, Katharina; Gerjets, Peter; Schuh, Julia – Instructional Science: An International Journal of the Learning Sciences, 2010
In this paper the augmentation of worked examples with animations for teaching problem-solving skills in mathematics is advocated as an effective instructional method. First, in a cognitive task analysis different knowledge prerequisites are identified for solving mathematical word problems. Second, it is argued that so called hybrid animations…
Descriptors: Foreign Countries, Prerequisites, Task Analysis, Problem Solving