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- Knez, Igor, 1959-
(author)
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Estimation of the hypothesis hierarchy in probabilistic inference tasks.
- 1992
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In: Scandinavian Journal of Psychology. - : Wiley. - 0036-5564 .- 1467-9450. ; 33:1, s. 47-55
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Journal article (peer-reviewed)abstract
- Is there a hierarchical order among the hypotheses about functional rules in probabilistic inference tasks, i.e. what is the construction and the procedure of the "hypothesis sampling mechanism" employed by the subjects in this kind of task? According to the hypothesis sampling model initially proposed by Brehmer ( 1974) there should be a hierarchical order among the hypotheses in the subject's hypothesis pools. The procedures of hypothesis sampling and testing ought to follow this strict data independent order (see e.g. Sniezek, 1986; Brehmer, 1987). Knez (199]a,b) showed, however, that this assumption may be incorrect. As a follow up to these results the question regarding the construction of the subject's hypothesis pools was reapproached in the present study. The results indicated a consistency with the hierarchical assumption (Brehmer, 1974) only regarding the relation between the linear and nonlinear rules but not within these types of rules.
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- Knez, Igor, 1959-
(author)
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Subjects´ inferential performance and the interaction of data and hypotheses in probabilistic inference tasks.
- 1992
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In: Scandinavian Journal of Psychology. - : Wiley. - 0036-5564 .- 1467-9450. ; 33:1, s. 56-67
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Journal article (peer-reviewed)abstract
- In a recent paper, Knez (1991) showed an interaction of data and hypotheses in probabilistic inference tasks. The results illustrated two, earlier not obtained, significant main effects on subjects' hypothesis sampling, viz. the effect of different forms of data presentation and subjects' execution of cognitive control over their hypothesis pool throughout the series of trials. The present paper followed up these results in that the subjects' hypothesis testing, in Knez (1991) was subjected to an analysis. Hence, to see if the effects mentioned above significantly influenced the subjects' hypothesis testing. as they did for subjects' hypothesis sampling. The results showed a consistency with Knez (1991), i.e. the results emphasize the interaction of data and hypothesis in probabilistic inference tasks, as well as the subjects' execution of cognitive control over their hypothesis pool concerning both the subjects' hypothesis sampling and testing.
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