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141.
Required sample size to detect the mediated effect 总被引:2,自引:0,他引:2
Mediation models are widely used, and there are many tests of the mediated effect. One of the most common questions that researchers have when planning mediation studies is, "How many subjects do I need to achieve adequate power when testing for mediation?" This article presents the necessary sample sizes for six of the most common and the most recommended tests of mediation for various combinations of parameters, to provide a guide for researchers when designing studies or applying for grants. 相似文献
142.
The main aim of this article is to explicate why a transition to ideal point methods of scale construction is needed to advance the field of personality assessment. The study empirically demonstrated the substantive benefits of ideal point methodology as compared with the dominance framework underlying traditional methods of scale construction. Specifically, using a large, heterogeneous pool of order items, the authors constructed scales using traditional classical test theory, dominance item response theory (IRT), and ideal point IRT methods. The merits of each method were examined in terms of item pool utilization, model-data fit, measurement precision, and construct and criterion-related validity. Results show that adoption of the ideal point approach provided a more flexible platform for creating future personality measures, and this transition did not adversely affect the validity of personality test scores. 相似文献
143.
In intuitions concerning semantic coherence participants are able to discriminate above chance whether a word triad has a common remote associate (coherent triad) or not (incoherent triad). These intuitions are driven by increased fluency in processing coherent triads compared to incoherent triads, which in turn triggers a brief and short positive affect. The present work investigates which of these internal cues, fluency or positive affect, is the actual cue underlying coherence intuitions. In Experiment 1, participants liked coherent word triads more than incoherent triads, but did not rate them as being more fluent in processing. In Experiment 2, participants could intuitively detect coherence when they misattributed fluency to an external source, but lost this intuitive ability when they misattributed affect. It is concluded that the coherence-induced fluency by itself is not consciously experienced and not used in the coherence intuitions, but the fluency-triggered affective consequences. 相似文献
144.
Caitlyn N. Metoyer Jennifer N. Fritz Justin C. Hunt Victoria L. Fletcher 《Journal of applied behavior analysis》2020,53(4):2250-2259
Individuals who engage in aggression often display precursors or agitated behavior first, and it is important for caregivers to learn how to minimize risk of injury in the event that aggression were to occur. In this study, behavioral skills training was used to teach 4 caregivers of children who engage in aggression to position their body safely and prevent access to dangerous items during agitated states. Confederates were used during all baseline, training, and posttraining sessions to maintain consistency and the safety of the caregivers. All caregivers quickly learned to use these safety skills during agitated periods but not during calm periods with minimal between-session feedback regarding correct responding. 相似文献
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Philosophical Studies - According to the view that there is moral encroachment in epistemology, whether a person has knowledge of p sometimes depends on moral considerations, including moral... 相似文献
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Daphne Koinis-Mitchell Elizabeth L. McQuaid Sheryl J. Kopel Cynthia A. Esteban Alexander N. Ortega Ronald Seifer Cynthia Garcia-Coll Robert Klein Elizabeth Cespedes Glorisa Canino Gregory K. Fritz 《Journal of clinical psychology in medical settings》2010,17(1):38-48
The objective of this study was to examine associations between specific dimensions of the multi-dimensional cumulative risk index (CRI) and asthma morbidity in urban, school-aged children from African American, Latino and Non-Latino White backgrounds. An additional goal of the study was to identify the proportion of families that qualify for high-risk status on each dimension of the CRI by ethnic group. A total of 264 children with asthma, ages 7–15 (40% female; 76% ethnic minority) and their primary caregivers completed interview-based questionnaires assessing cultural, contextual, and asthma-specific risks that can impact asthma morbidity. Higher levels of asthma-related risks were associated with more functional morbidity for all groups of children, despite ethnic group background. Contextual and cultural risk dimensions contributed to more morbidity for African-American and Latino children. Analyses by Latino ethnic subgroup revealed that contextual and cultural risks are significantly related to more functional morbidity for Puerto Rican children compared to Dominican children. Findings suggest which type of risks may more meaningfully contribute to variations in asthma morbidity for children from specific ethnic groups. These results can inform culturally sensitive clinical interventions for urban children with asthma whose health outcomes lag far behind their non-Latino White counterparts. 相似文献
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This article describes a dual‐system model of consumer behavior. This model is based on the assumption that all human behaviors are a joint function of reflective and impulsive mechanisms. Those mechanisms have different principles of operation but contribute to the act of buying. However, the relative contribution of impulsive and reflective processes depends on personal and contextual circumstances. The operation and interaction of the 2 systems at different stages of information processing is described and applied to the dynamics of consumer behavior, with a special emphasis on impulse buying. 相似文献