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171.
Dinsmoor JA Bowe CA Dout DL Martin LT Mueller KL Workman JD 《Journal of the experimental analysis of behavior》1983,40(3):253-264
Pigeons producing deliveries of grain on a mixed variable-interval, extinction schedule by pecking a center key could also produce discriminative stimuli on concurrent variable-interval schedules by pecking the left or right observing key. The stimuli produced by each observing key were varied independently. In the first experiment, the negative discriminative stimulus was at the far end of the spectrum from the key illumination accompanying the mixed schedule and from the positive discriminative stimulus. When the magnitude of the difference between the latter two stimuli (salience) was varied, more pecks occurred on the observing key producing the larger of the two differences than on the key producing the smaller difference. In the second experiment, the stimulus accompanying the mixed schedule was at the far end of the spectrum, and the magnitude of the difference between the two discriminative stimuli (disparity) was varied. The proportion of pecks occurring on each observing key shifted systematically in the direction of the key producing the larger difference. The salience of the discriminative stimuli and their disparity each has an independent influence on the frequency of observing when the other is controlled, but the effect of the salience appears to be the more substantial. 相似文献
172.
Research consistently shows part- and full-time workers to be different on a variety of characteristics such as job satisfaction, organizational commitment and intentions to leave the organization. This study challenges the commonly accepted argument that these differences are due to the different structural conditions of work that are faced by part- and full-time workers. The possibility that these differences are the consequence of at-entry differences in dispositions and orientations to work is tested on a sample of part- and full-time registered nurses who had just begun employment. With one exception the part-and full-time employees were found to be the same on fourteen at-entry characteristics. These results strongly suggest that it is the structural conditions of work that produce the often observed differences found between part- and full-time workers.An earlier version of this paper was presented at the 1991 Midwest Sociological Society Meetings, Des Moines, Iowa, April 11–14. Support for the original data collection came from the Division of Nursing of the Health Resources and Services Administration (R01 NU01050-01A1). Joanne McCloskey is to be thanked for allowing us to use this data set. 相似文献
173.
John Benjafield Kris Frommhold Tom Keenan Ron Muckenheim Dierk Mueller 《Behavior research methods》1993,25(1):27-40
Partly in order to facilitate research on the relation between some standard psychological variables, we gathered normative data on 500 proverbs sampled from theOxford Dictionary of English Proverbs (Wilson, 1970). The scales for which we gathered data are imagery, concreteness, goodness , and familiarity. These norms may be of value to researchers who wish to sample linguistic units larger than the word from a set that contains an extensive number of unfamiliar and familiar items. To illustrate the possible uses to which these data may be put, we presented a causal model of the relation between the four variables mentioned above. 相似文献
174.
Keith Hattrup Karsten Mueller Pancho Aguirre 《Journal of Occupational & Organizational Psychology》2008,81(2):219-240
Using data from two large multinational samples, this research sought to contribute to our knowledge of international organizational behaviour by examining the cross‐national generalizability of organizational commitment. Sample 1 included employees of 10 subsidiaries of a large multinational organization, whereas Sample 2 relied on data collected in 25 nations in the context of a large opinion survey. Results in both samples supported the expectation that measures of commitment would be more susceptible to measurement non‐equivalence than measures of job satisfaction. Differences in relationships between commitment and satisfaction across countries were observed in both samples, as were differences in mean commitment levels. Nation‐level individualism/collectivism (I/C) failed to account for the observed differences, however, suggesting that commitment and I/C are largely independent, despite theoretical arguments to the contrary. Results of the study suggest that despite some cross‐national variation, differences in commitment across national boundaries are small and empirically unrelated to I/C. 相似文献
175.
Heinzel A Hautzel H Poeppel TD Boers F Beu M Mueller HW 《Consciousness and cognition》2008,17(3):685-699
One problem of interpreting research on subconscious processing is the possibility that participants are weakly conscious of the stimuli. Here, we compared the fMRI BOLD response in healthy adults to clearly visible single letters (supraliminal presentation) with the response to letters presented in the absence of any behavioural evidence of visibility (subliminal presentation). No letter catch trials served as a control condition. Forced-choice responses did not differ from chance when letter-to-background contrast was low, whereas they were almost 100% correct when contrast was high. A comparison of fMRI BOLD signals for supraliminal and subliminal letters with the control trials revealed a signal increase in left BA 37 (fusiform gyrus). Comparison of supraliminal with subliminal letters showed a significant increase in the right inferior frontal gyrus (BA 44, partly extending to BA 9 and BA 45, as well as BA 46). Finally, a comparison of subliminal with supraliminal letters showed increases in the left middle temporal gyrus (BA 21) and the right extrastriate cortex (BA 19). 相似文献
176.
Ryan T. Tolman Charles W. Mueller Eric L. Daleiden Roxanna E. Stumpf Sarah L. Pestle 《Journal of child and family studies》2008,17(6):894-908
We examined client outcomes from the implementation of Multisystemic Therapy (MST) in a statewide child and adolescent mental
health system. Specifically, we examined (1) the validity of therapist-rated MST outcome measures by comparing them to ratings
of functional impairment and level of service needs by CAMHD care coordinators, who provide case management and care coordination
services, (2) potential client and service predictors of therapist-rated outcomes, and (3) improvement in youth functioning
around the time of entry to and exit from MST compared with rates of improvement reported in randomized controlled trials
(RCTs) by the developers of MST. Results suggested that therapist-rated MST outcomes were valid indicators of treatment success.
Similar to other findings in the MST literature, few client or service characteristics predicted these outcomes. Finally,
although MST entry–exit effect sizes were lower than the mean derived from RCTs published by the developers, they were within
the 95% confidence interval. Together, these findings support the implementation of MST in complex systems of care with continued
attention to quality assurance and ongoing use of data for evaluation. 相似文献
177.
J. D. Balakrishnan and J. A. MacDonald (2008) argue that RTbased measures of signal detection processes provide evidence against signal detection theory’s notion of a flexible decision criterion. They argue that this evidence is immune to the alternative explanation proposed by S. T. Mueller and C. T. Weidemann (2008), that decision noise may mask criterion shifts. We show that noise in response times can produce the same effects as are produced by noise in confidence ratings. Given these results, the evidence is not sufficient to categorically reject the notion of a flexible response policy implemented through shifts in a decision criterion. nt]mis|This research was supported in part by a postdoctoral fellowship to C.T.W. from the German Academic Exchange Service (DAAD). 相似文献
178.
Genetic testing for inherited deafness is now available within some genetics centres. This study used a structured questionnaire to assess the potential uptake of prenatal diagnosis (PND) for inherited deafness, and document the opinions of deaf and hearing individuals toward PND and termination of pregnancy (TOP) for hearing status. Participants were self-selected from the whole of the UK, of whom 644 were deaf, 143 were hard of hearing or deafened, and 527 were hearing individuals who had either a deaf parent or child. The results showed that 21% of deaf, 39% of hard of hearing and deafened, and 49% of hearing participants said they would consider PND for deafness. Six percent of deaf, 11% of hard of hearing and deafened, and 16% of hearing participants said they would consider a TOP if the fetus was found to be deaf. Two percent of deaf participants said they would prefer to have deaf children and would consider a TOP if the fetus was found to be hearing. 相似文献
179.
180.
Silke M. Mueller Johannes Schiebener Gerrit Stöckigt 《Journal of Cognitive Psychology》2017,29(2):217-239
Many decisions in everyday life involve weighing up immediate and expected future outcomes that may be conflictive. Yet, it is still unclear which cognitive functions may affect decision-making in such situations. We examined 150 healthy subjects using a new decision-making task that measures people’s ability at handling short- and long-term consequences under objective risk. Two task versions were developed to investigate the effects of feedback about long-term consequences on decision-making. One version includes feedback about changes in long-term prospects while the other does not. Both groups revealed that advantageous decision-making correlated with reasoning and working-memory abilities, however, no correlations with executive functions were found. The effect of feedback on decision-making performance was moderated by impulsivity and need for cognition. Our findings contribute to recent dual-system approaches for risky decision-making by showing that individuals with predispositions towards impulsive rather than reflective information processing could profit from feedback about long-term prospects. 相似文献