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121.
122.
Examinations of post-choice decision-making behavior often involve two successive choices. At time 1, participants choose between two equally attractive items. At time 2, participants choose between the unchosen item from time 1 and a new item that is roughly equal in attractiveness to the other two. The option rejected at time 1 will tend to again be rejected at time 2, a tendency often attributed to a psychological carry-over effect. Chen (2008) (Available from: http://cowles.econ.yale.edu/P/cd/d16b/d1669.pdf) discounts these psychological explanations. He argues that, given the time 1 choice, there is, in fact, a baserate probability of 66.7% that the initially unchosen item will be rejected again at time 2. However, Chen’s argument rests on the unwarranted assumption that the time 1 choice provides a perfectly reliable measure of subjects’ preference for the chosen item over the unchosen item. With more realistic estimates of the association between preference and choice, Chen’s statistical explanation cannot fully account for the carry-over effect. Alternative experimental methodologies that eliminate Chen’s statistical explanation are discussed. 相似文献
123.
Chen argued that the proper null hypothesis for free-choice studies examining shifts in choice was 66.7%. Sagarin and Skowronki (2009) questioned the appropriateness of this value, noting that it was based on an unwarranted assumption that subjects always choose preferred options over less preferred options. In this paper, we respond to the points raised by Chen and Risen (2009), noting that: (a) violations of an additional unwarranted assumption (perfect transitivity) also move the proper null hypothesis towards 50%; (b) the validation of pretest measures would enable researchers to estimate an upper bound on the proper null; (c) the “blind” choice methodology proposed by Sagarin and Skowronski places the null unambiguously at 50%; and (d) Sagarin and Skowronski correctly call for null-hypothesis tests where needed. In the end, we again endorse the idea that this debate is best resolved empirically, but we believe the empirical avenues available are wider than those endorsed by Chen and Risen. 相似文献
124.
Practice not only affects how information is processed, but also which information is processed. The Information-Reduction
Hypothesis (i.e. Haider & Frensch, 1996) holds that — with practice — irrelevant task information (i.e. information that is
not logically needed to correctly perform the task) is discarded from processing. Recently, Gaschler and Frensch (2007) have
demonstrated that Information Reduction is not affected by the frequency with which individual task configurations are presented:
well-practiced and little-practiced irrelevant task configurations are discarded at the same point in time during practice;
Information Reduction is thus an item-general phenomenon. These findings suggest that Information Reduction is at least in
part a consequence of top-down, voluntary control. In the present research, we ask how tasks can be constructed such that
Information Reduction is avoided. Our results show that item-general Information Reduction is observed even when it leads
to severe processing costs (i.e. errors). On the whole, the present results are in line with models of skill acquisition incorporating
top-down modulation (e.g. Haider & Frensch, 2002) and are incompatible with purely data-driven accounts of skill acquisition
(e.g. Logan, 1988; Nosofski & Palmeri, 1997; Palmeri, 1997; Rickard, 2004). 相似文献
125.
Carl P. Maertz Jr. Ahmad Hassan Peter Magnusson 《Organizational behavior and human decision processes》2009
Although considerable organizational research exists on the topic of expatriate adjustment and early departure, little has focused on the actual psychological processes causing change in adjustment outcomes. Specifically, researchers have not focused on cognitive dissonance that arises from adopting or condoning culturally expected behaviors that are inconsistent with the expatriate’s own values or attitudes. We propose that dissonance experiences and the methods used for dissonance reduction influence expatriates’ adjustment outcomes and, in turn, their tendency for early departure. We further specify key situational and individual difference constructs that regulate these causal relationships. Along with a greater understanding of cross-cultural adjustment, the current model suggests new directions for expatriate research and management. 相似文献
126.
Several studies have investigated strategies that a participant in dyadic aggression may use to reduce the aggression of the other participant. In one set of these studies the subject is instigated to aggression by an opponent who sets maximum shocks for the subject to receive during the first block of six trials. Following attack-instigation, opponents shift to withdrawal and matching strategies for 18 trials. The withdrawal strategy is an abrupt shift to the lowest levels of shock possible. The matching strategy is the exact matching by an opponent of the shock set by the subject on the previous trial. With these procedures the withdrawal strategy has been the most effective method to reduce aggression. These results led to the suggestion that the effectiveness of the withdrawal strategy may be due to immediate, unambiguous communication by the opponent of his willingness to reduce attack. This hypothesis was tested in the present study by creating a matching condition modified to include immediate, unambiguous communication of willingness to reduce attack. In this withdrawal-matching condition the opponent followed attack with two trials of the lowest levels of shock before shifting to a matching strategy. Although the withdrawal-matching strategy did not lead to shock settings that were significantly lower than the matching strategy, there was evidence that subjects interacting with withdrawal-matching opponents did reduce their shock settings from block 1 to block 4 more rapidly than subjects interacting with matching opponents. A variable matching strategy was also used to provide a more realistic analogy of matching in the mundane world. While subjects with variable-matching opponents also did not set shock levels during blocks 2, 3, and 4 that were significantly lower than the matching strategy, there was evidence that subjects in this condition reduced their shock levels more rapidly than subjects with matching opponents. Although the effects were not as strong as expected, the results do provide some support for the interpretation that the effectiveness of the withdrawal strategy may be due to unambiguous communication of willingness by the opponent to reduce his or her aggression. The effectiveness of the variable-matching strategy was attributed to interrupting the tendency of the subject and his or her opponent to match each other's responses. Consistent with earlier attack-instigated aggression studies, the withdrawal strategy in the present study led to a rapid reduction in aggression. 相似文献
127.
Choice between reliable and unreliable reinforcement alternatives revisited: Preference for unreliable reinforcement 总被引:1,自引:1,他引:0
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Pigeons' choices between a reliable alternative that always provided food after a delay (i.e., 100% reinforcement) and an unreliable one that provided food or blackout equally often after a delay (i.e., 50% reinforcement) was studied using a discrete-trials concurrent-chains procedure modified to prevent choice between alternatives following a blackout outcome. Initial links were fixed-ratio 1 schedules, and terminal links were fixed-time schedules. Stimuli presented during the terminal-link delays were correlated with the food and blackout outcomes. In Experiment 1, terminal-link durations were varied. With short terminal links (i.e., 10 s), 6 of 8 subjects showed strong preference for the 50% side. As terminal-link duration increased to 30 s, preference, regardless of direction, became less extreme. In Experiment 2, the side-key location of the 50% and 100% alternatives was reversed for 3 subjects. Preference for the 50% alternative reoccurred following the key reversal. When a 5-s separation was subsequently interposed between the initial and terminal links for both alternatives, all birds reversed to a preference for the 100% side. In general, the strong preference for the 50% side was qualitatively consistent with the expectation that the procedure enhanced the conditioned-reinforcement effectiveness of the food-associated terminal-link stimulus on the 50% side. Implications of the results for various accounts of choice of the 50% alternative are discussed. 相似文献
128.
Twenty-nine highly angry subjects who obtained high scores on Spielberger's Trait component of State-Trait Anger Scale went through a thought-listing procedure to determine their negative self-statements in response to high, medium, and low anger-arousing situations. It was found that subjects made more negative self-statements in response to a high anger-arousing situation compared to the medium and low anger-arousing situations. The subjects were divided into four groups. Subjects in one group were trained to reduce their negative thoughts, subjects in a second group were trained to meditate, subjects in the third group were asked to imagine the high anger-arousing situations (placebo procedure), and subjects in the fourth group were given no treatment. It was found that the subjects in the Negative-thought-reduction, Meditation and Placebo groups showed improvement in trait anger, anger aroused through high-anger situations, anger scores across a wide variety of situations, unconstructive coping, and anger measured through physiological symptoms. The gains made through intervention were maintained at a 6-week follow-up. The No-treatment Group showed no significant change in anger scores across a wide variety of situations, unconstructive coping, and physiological symptom scores but showed a small but significant improvement in trait anger and in anger aroused by high-anger situations. 相似文献
129.
Reductions in shock frequency and response effort as factors in reinforcement by timeout from avoidance 总被引:1,自引:1,他引:0
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Rats' presses on one lever canceled shocks programmed after variable cycles, while presses on a second lever occasionally produced a 2-min timout during which the shock-delection schedule was suspended and its correlated stimuli removed. These concurrent schedules of avoidance and timeout were embedded in a multiple schedule whose components differed, within and across conditions, in terms of the programmed shock rate associated with the shock-deletion schedule. Analyses based on the generalized matching law suggest that the reduction in the response requirement correlated with termination of the avoidance schedule was a more important factor in the reinforcing effectiveness of timeout than was shock-frequency reduction, at least in 2 of 3 rats. After training in each condition, responding on the timeout lever was extinguished by withholding timeouts in both components over seven sessions. Resistance to extinction varied directly with the rates of both shock-frequency reduction and avoidance-response reduction experienced during training. Although reduction in response effort appeared to dominate shock-frequency reduction in the maintenance of responding, neither factor had a clear advantage in predicting the course of extinction. 相似文献
130.
The relative immediacy of reinforcement in concurrent-chain schedules was varied while the relative reduction in the overall average time to reinforcement associated with terminal-link entry was held constant. For each of four pigeons, choice did not vary with relative immediacy of reinforcement. Subsequently, choice by the same subjects was shown to be sensitive to relative reduction in average time to reinforcement. 相似文献