Dissertation Information for Sirkka Jarvenpaa
- Sirkka Jarvenpaa
- University of Minnesota, Twin Cities (USA) (1986)
MPACT Status: Incomplete - Not_Inspected
Title: AN INVESTIGATION OF THE EFFECTS OF CHOICE TASKS AND GRAPHICS ON INFORMATION-PROCESSING STRATEGIES AND DECISION-MAKING PERFORMANCE
Abstract: The great amount of effort expended during the last 70 years in studying the human use of graphics has not produced a theory of graphics or even a systematic body of research. Further research needs to concentrate on basic issues in the use of graphics, and to improve the research methodologies employed. This dissertation addressed the basic question of the availability of information in a graphical presentation format and how this availability influences the selection of information processing strategies and decision outcome. The study attempted to improve the research on graphics by grounding the research in existing theories from reference disciplines, using pre-analyzed tasks, examining decision process as well as decision outcome, employing existing measuring instruments, and exercising tight experimental control.
The research first constructed a conceptual model of the use of graphics by integrating a large body of literature on decision making and presentation formats. Next, a controlled laboratory study was conducted to test two relationships of the model; namely (1) whether the graphical format affects strategy, and (2) whether the affinity between the strategy elicited by the task and the strategy elicited by the format influences the strategy employed by a decision maker and the decision performance. The independent variables were: task and graphical presentation format. The dependent variables were: information processing strategy, decision quality, satisfaction with graphical decision aids, and decision confidence. The information processing strategy was examined via a verbal protocol technique.
The results provided strong support for the notion that human behavior is highly contingent on the demands of the graphical format in the initial stages of decision making. The study also provided moderate support for the notion that the choice process of decision making is contingent on the affinity between the strategies elicited by the task and graph. Finally, no support was found that decision quality and subjective evaluations were affected by the affinity in strategies elicited by the task and graph. The results are discussed in terms of their implications to behavioral decision literature, graphics research, and a taxonomy of tasks.
MPACT Scores for Sirkka Jarvenpaa
A = 1
C = 0
A+C = 1
T = 1
G = 1
W = 1
TD = 1
TA = 0
calculated 2008-01-31 06:25:37
Advisors and Advisees Graph