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21.
- Establishing smoking policies which accommodate customers' smoking preferences is a major problem for restaurants, bars, hotels, and other firms in the service industry. This study is based on the premise that tobacco smoke can be considered a component of both the physical and ambient retail service environment. Because of legal and ethical concerns, the presence or absence of environmental tobacco smoke (ETS) in two types of eating facilities (bar and fine dining restaurant) was operationalized by the presentation to respondents of photographs which pictured customers in a setting where smoking was either present or absent. The success of this method of manipulation of the treatment variable was assessed with a thought listing procedure. Thought listing responses indicate that both treatments (type of facility and smoking policy) were adequately conveyed by the photographs. Results indicate that cognitive, emotional, and behavioral responses were all negatively affected by the presence of tobacco smoke. The conclusion is that managers who permit smoking in their facilities risk losing non‐smoking patrons while smokers are little affected by either the presence or absence of smoke.
- The major contributions of this study include both the exploration of tobacco smoke as part of the retail service environment for eating establishments and the use of thought listings as a manipulation check for variables which were manipulated through use of photographs depicting the treatment conditions.
22.
Frederic Vallee-Tourangeau Robin A. Murphy 《The Quarterly Journal of Experimental Psychology Section B: Comparative and Physiological Psychology》1998,51(2):173-191
Two experiments on human causal induction with multiple candidate causes are reported. Experiment 1 investigated the influence of a perfect preventive cause on the ratings of a less contingent cause. Whereas the Rescorla-Wagner model (RWM) and Cheng's probabilistic contrast model predict that the less contingent cause should be completely discounted, the Pearce model predicts, in most cases, an enhancement of that cause's perceived importance. Results corresponded more closely tothe predictions of the Pearce model.The predictions of both the RWM and the Pearce model rely on a constant context cue acquiring associative strength, yet no such cue was explicitly identified in the task scenario employed in Experiment 1. Experiment 2 replicated a number of key conditions of Experiment 1 with a task scenario that afforded ratings of the causal importance of the context in which the effectiveness of the discrete candidate causes was evaluated. In addition, the number of trials was increased to test the possibility that the ratings in Experiment 1 were the product of incomplete learning. The results of the first experiment were replicated and the ratings of the effectiveness of the context cue were anticipated by both the RWM and the Pearce model. Overall, the Pearce model offers a more comprehensive account of the causal inferences recorded in this study. 相似文献
23.
Frederic M. Lord 《Psychometrika》1983,48(2):233-245
Given known item parameters, unbiased estimators are derived i) for an examinee's ability parameter and for his proportion-correct true score, ii) for the variances of and across examinees in the group tested, and iii) for the parallel-forms reliability of the maximum likelihood estimator
.This work was supported in part by contract N00014-80-C-0402, project designation NR 150-453 between the Office of Naval Research and Educational Testing Service. Reproduction in whole or in part is permitted for any purpose of the United States Government. 相似文献
24.
Frederic M. Lord 《Psychometrika》1983,48(3):425-435
Asymptotic formulas are derived for the bias in the maximum likelihood estimators of the item parameters in the logistic item response model when examinee abilities are known. Numerical results are given for a typical verbal test for college admission. 相似文献
25.
Frederic M. Lord 《Psychometrika》1983,48(3):477-482
A theoretical model is given for dealing with omitted responses. Two special cases are investigated.This work was supported in part by contract N00014-80-C-0402, project designation NR 150-453 between the Office of Naval Research and Educational Testing Service. Reproduction in whole or in part is permitted for any purpose of the United States Government. 相似文献
26.
Frederic M. Lord 《Psychometrika》1956,21(1):31-50
Speeded and unspeeded tests of vocabulary, spatial relations, and arithmetic reasoning were factorially analyzed, together with certain reference tests and academic grades. Lawley's maximum likelihood method was used, the computations being carried out on the Whirlwind electronic computer. Four different speed factors were isolated, together with a second-order general speed factor. Consistent small positive correlations between the academic grades and the speed factors were found.The writer is indebted to Dr. John French, to Dr. David Saunders, and especially to Dr. Ledyard R Tucker for helpful suggestions and theoretical advice throughout the course of this study. The active cooperation of Dr. William Shields, Educational Advisor, and of many others at the United States Naval Academy at Annapolis has been invaluable. The author is very grateful to Dr. P. Youtz and Dr. C. W. Adams for the opportunity to use Whirlwind I, a high-speed computer sponsored by the Office of Naval Research, and to Dr. H. Denman for help is programming and in putting the program on the computer. He also wishes to express his deep appreciation to Dr. Hubert Brogden and Miss Bertha Harper of The Adjutant General's Office for the opportunity to use their matrix rotator and for helpful guidance in its operation. 相似文献
27.
Frederic M. Lord 《Psychometrika》1959,24(1):1-17
Formulas are derived for unbiased sample estimators of any raw or central moment of the frequency distribution of true scores. A general method is developed for obtaining from each examinee's observed score a least squares estimate of his true score.This research was carried out under contract Nonr-2214(00) with the Office of Naval Research, Department of the Navy. 相似文献
28.
Frederic M. Lord 《Psychometrika》1959,24(2):175-177
The K-R (21) formula can be derived without recourse to the undesirable assumption that the test items are all indistinguishable. 相似文献
29.
Frederic M. Lord 《Psychometrika》1952,17(3):297-304
A solution is developed in implicit form for the problem of assigningN men ton jobs, the proportion of men to be assigned to each job being specified in advance.The author wishes to thank Dr. Hubert Brogden and Dr. Paul Horst for their helpful discussion and criticism. 相似文献
30.
The results of 54 controlled studies of psychological consultation using mental health, behavioral, and organization development models were synthesized using meta-analysis. The results supported the continued use of consultation as an effective practice in modifying consultee and, to a lesser extent, client behavior and attitudes. On the average, consultees showed improvements greater than 71% and clients showed improvements greater than 66% of untreated comparable groups. No differences were found in terms of effectiveness among the three models. 相似文献