| Summary: | This study examines the effect of visualization level and level of assignment complexity on investment decision making as measured by level of accuracy, level of confidence and calibration level. This research uses experimental method. The experimental method in this research is 2x2 (mixed design) include: (1) Level of visualization (high and low) and (2) Complexity of task (high and low). The dependent variable in this research is the level of accuracy, level of confidence and calibration level. Data analysis technique used in this research is independent sample t-test. Participants in this study are students of Accounting Undergraduate Program in one Private University in East Java. The total participants in this study were 103 people, but only 77 participants who passed the check manipulation and can be analyzed further. The results of this study indicate that the visualization effect in decision-making has an effect only when decision makers receive assignment with low complexity of assignment. The results of this study indicate that the effect of the complexity of the assignment influences both decision-making as measured by the level of accuracy, level of confidence and calibration level.
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