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181.
Equations were developed to predict the apparent motion of a physically stationary object resulting from head movement as a function of errors in the perceived distances of the object or of its parts. These equations, which specify the apparent motion in terms of relative and common components, were applied to the results of two experiments. In the experiments, the perceived slant of an object was varied with respect to its physical slant by means of perspective cues. In Experiment I, O reported the apparent motion and apparent distance of each end of the object independently. The results are consistent with the equations in terms of apparent relative motion, but not in terms of apparent common motion. The latter results are attributed to the tendency for apparent relative motion to dominate apparent common motion when both are present simultaneously. In Experiment II, a direct report of apparent relative motion (in this case, apparent rotation) was obtained for illusory slants of a physically frontoparallel object. It was found that apparent rotations in the predicted direction occurred as a result of head motion, even though under these conditions no rotary motion was present on the retina. 相似文献
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Scores obtained at eight different stages of practice on the Complex Coordination Test together with scores on 18 reference
tests were subjected to a Thurstone Centroid Factor Analysis. Nine meaningful factors were identified in the experimental
battery. The results indicated considerable, but systematic, changes in the factor structure of the Complex Coordination Test
as practice on the task was continued. The test became less complex (factorially) as practice was continued. Moreover, there
was a change in thenature of the factors contributing variance at early and later stages of practice. Implications of the findings are related to certain
problems of learning theory, psychomotor test development, and criterion analysis.
Skill Components Research Laboratory. The opinions or conclusions contained in this report are those of the authors and do
not necessarily reflect the views or indorsement of the Department of the Air Force.
The writers are indebted to Dr. Jack A. Adams for the basic data on which this analysis is based. 相似文献
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Walter W. Merrill Jr. 《Psychometrika》1937,2(4):215-223
Since item values obtained by item analysis procedures are not always stable from one situation to another, it follows that selection of items for validity or difficulty is sometimes useless. An application of Chi Square to testing homogeneity of item values is made, in the case of theUL method, and illustrative data are presented. A method of applying sampling theory to Horst's maximizing function is outlined, as illustrative of author's observation that the results of item analysis by any of various methods may be similarly tested. 相似文献
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The Impact of Absolute Importance and Processing Overlaps on Prospective Memory Performance
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Prospective memory is the ability to remember an intention at an appropriate moment in the future. Prospective memory tasks can be more or less important. Previously, importance was manipulated by emphasizing the importance of the prospective memory task relative to the ongoing task it was embedded in. This resulted in better prospective memory performance but also ongoing task costs. In the present study, we simply instructed one group of participants that the prospective memory task was important (i.e., absolute importance instruction) and compared them with a group with relative importance instructions and a control group. The results showed that absolute importance leads to an increase in prospective memory performance without enhancing ongoing task costs, whereas relative importance resulted in both increased prospective memory performance and ongoing task costs. Thus, prospective memory can be enhanced without ongoing task costs, which is particularly crucial for safety‐work contexts. Copyright © 2015 John Wiley & Sons, Ltd. 相似文献
189.
Thierry Chevalley Walter Schaeken 《Quarterly journal of experimental psychology (2006)》2016,69(4):728-751
When solving a simple probabilistic problem, people tend to build an incomplete mental representation. We observe this pattern in responses to probabilistic problems over a set of premises using the conjunction, disjunction, and conditional propositional connectives. The mental model theory of extensional reasoning explains this bias towards underestimating the number of possibilities: In reckoning with different interpretations of the premises (logical rules, mental model theoretical, and, specific to conditional premises, conjunction and biconditional interpretation) the mental model theory accounts for the majority of observations. Different interpretations of a premise result in a build-up of mental models that are often incomplete. These mental models are processed using either an extensional strategy relying on proportions amongst models, or a conflict monitoring strategy. The consequence of considering too few possibilities is an erroneous probability estimate akin to that faced by decision makers who fail to generate and consider all alternatives, a characteristic of bounded rationality. We compare our results to the results published by Johnson-Laird, Legrenzi, Girotto, Legrenzi, and Caverni [Johnson-Laird, P., Legrenzi, P., Girotto, V., Legrenzi, M., &; Caverni, J. (1999). Naive probability: A mental model theory of extensional reasoning. Psychological Review, 106, 62–88. doi:10.1037/0033-295X.106.1.62], and we observe lower performance levels than those in the original article. 相似文献
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