A Study On Natural Frequency Facilitation In Three Kinds Of Complex Baysian Reasoning

This study conduct three experiments to detect the variation pattern and the cause of natural frequencies facilitate. All subject are college student, observed score is posterior probabilities estimated by them.The first experiment use a 2×3 design (Information format×surface-complexity material). Two factors are between-groups design. Experiment results show apparent natural frequency facilitation in either normal or surface complexity material. There is no Statistical difference between materials in same information format.The second experiment use a 2×3 design (Information formatx content-complexity material). Two factors are between-groups design. Experiment results show a more obviously natural frequency facilitation then first experiment, and just like first experiment's results show, has no Statistical differences between materials in same information format.The third experiment use a 2×4 design (Information formatx relation-complexity material). Two factors are between-groups design. Experiment results show an apparent natural frequency facilitation in either normal or relation-complexity material. Not alike preceding study, we found an obviously Statistic differences between materials in same information format (natural frequency and probability).In general, this study proves once again that natural frequency can improve subject's accuracy. Surface- complexity and content- complexity have no unfavorable effect on subject's operating level, but they get a lower accuracy when they confront with relation-complexity material. Experiment results seem to support nests-set hypothesis.