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Abram Amsel John R. MacKinnon Michael E. Rashotte C. Thomas Surridge 《Journal of the experimental analysis of behavior》1964,7(2):135-138
Acquisition performance of 22 rats in a straight alley runway was examined. The animals were subjected to partial reinforcement when the alley was black (B±) and continuous reinforcement when it was white (W+). The results indicated (a) higher terminal performance, for partial as against continuous reinforcement conditions, for starting-time and running-time measures, and (b) lower terminal performance under partial conditions for a goal-entry-time measure. These results confirm within subjects an effect previously demonstrated, in the runway, only in between-groups tests, where one group is run under partial reinforcement and a separate group is run under continuous reinforcement in the presence of the same external stimuli. Differences between the runway situation, employing a discrete-trial procedure and performance measures at three points in the response chain, and the Skinner box situation, used in its free-operant mode with a single performance measure, are discussed in relation to the present findings. 相似文献
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Four applications of permutation tests to the single-mediator model are described and evaluated in this study. Permutation tests work by rearranging data in many possible ways in order to estimate the sampling distribution for the test statistic. The four applications to mediation evaluated here are the permutation test of ab, the permutation joint significance test, and the noniterative and iterative permutation confidence intervals for ab. A Monte Carlo simulation study was used to compare these four tests with the four best available tests for mediation found in previous research: the joint significance test, the distribution of the product test, and the percentile and bias-corrected bootstrap tests. We compared the different methods on Type I error, power, and confidence interval coverage. The noniterative permutation confidence interval for ab was the best performer among the new methods. It successfully controlled Type I error, had power nearly as good as the most powerful existing methods, and had better coverage than any existing method. The iterative permutation confidence interval for ab had lower power than do some existing methods, but it performed better than any other method in terms of coverage. The permutation confidence interval methods are recommended when estimating a confidence interval is a primary concern. SPSS and SAS macros that estimate these confidence intervals are provided. 相似文献
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MacKinnon Anna L. Silang Katherine Penner Kailey Zalewski Maureen Tomfohr-Madsen Lianne Roos Leslie E. 《Clinical child and family psychology review》2022,25(3):413-434
Clinical Child and Family Psychology Review - Parent stress and mental health problems negatively impact early child development. This study aimed to systematically review and meta-analyze the... 相似文献
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Mohammad A. AL Jabery Diana H. Arabiat Hatem A. AL Khamra Iman Amy Betawi Sinaria Kamil Abdel Jabbar 《Journal of child and family studies》2014,23(3):475-486
Providing formal support for children with autism and their parents is important and mandatory to improve children’s abilities and enhance the capabilities of parents. The present study attempted to investigate the perceptions of parents of children with autism regarding the services provided in Jordan. A questionnaire consisting of five sections was designed and distributed to a sample of 60 parents of children with autism (5–18 years old) among four special education institutions in Jordan. The questionnaire addressed five domains: demographics, type and number of received services, methods and difficulties of obtaining services, parents’ satisfaction, and parents’ perceived needed services. The results revealed that the service delivery system with which parents interacted was composed of multiple places and providers, but had several difficulties. Parents participating in this study expressed an average satisfaction with the received services. Issues pertaining to the cost of services, parents-professional partnerships, and overall quality of services were seen by parents as sources of low satisfaction. On the other hand, parents expressed the need for early intervention, family counseling, and community awareness services. Further suggestions and implications are presented in the study. 相似文献
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Simon B. Sherry Anna L. MacKinnon Kristin-Lee Fossum Martin M. Antony Sherry H. Stewart Dayna L. Sherry Logan J. Nealis Aislin R. Mushquash 《Personality and individual differences》2013
Perfectionistic concerns (i.e., negative reactions to failures, exaggerated concerns over others’ criticism and expectations, and nagging self-doubts) are linked to social disconnection and depressive symptoms. According to the perfectionism social disconnection model, perfectionistic concerns contribute to social disconnection (i.e., feeling rejected, excluded, and unwanted by others) which, subsequently, contributes to depressive symptoms. The social world is replete with chances for interpretations. In interpreting their social worlds, people high in perfectionistic concerns tend to perceive interpersonal discrepancies, a distressing form of social disconnection that involves perceptions of others as dissatisfied with them and as disapproving of them. These interpretations are also conceptualized as having depressing consequences for people high in perfectionistic concerns. This study tested whether perceived interpersonal discrepancies mediate the relation between perfectionistic concerns and depressive symptoms; 240 participants were recruited and this mediational model was tested with a four-wave, 4-week longitudinal design. Structural equation modeling with bootstrapped tests of mediation indicated the perfectionistic concerns-depressive symptoms relationship was mediated by interpersonal discrepancies (even after controlling for perfectionistic strivings). People high in perfectionistic concerns perceive others as dissatisfied with them and as disapproving of them. Feeling rejected, excluded, and unwanted by others, people high in perfectionistic concerns are vulnerable to depression. 相似文献