Although recent research has identified numerous variables that can affect behavior maintained by negative reinforcement, questions remain concerning the potential aspects of the demand context that evoke problem behavior. To date, few studies have examined these questions within general education classrooms. The current study assessed the influence of social and task-difficulty variables on problem behavior maintained by negative reinforcement. Teachers in general education classrooms implemented three analyses to determine the influence of these variables on the problem behavior of 4 boys. Results are discussed in terms of response covariation within the demand context. 相似文献
We investigated the recovery from memory of a primary task after an interruption. If the primary task lacked associative support among its task components, recovery was more difficult following an interruption that overlapped either completely or partially in the amount of information shared with the primary task (an interruption-similarity effect). In addition, memory for completed actions was superior to memory for impending unfinished actions. However, if the primary task had associative support among its task components, there was no adverse effect of interruption similarity, and completed and unfinished actions were recalled equally well. We explore possible explanations and implications of these results. 相似文献
Critical reflection potentially allows social work and human service (SWHS) students to understand how past experiences can shape their future practice. This study of 20 Australian undergraduate SWHS students with a history of childhood adversity found reflective writing for this purpose was not a useful pedagogical practice. Rather than developing skills in critical reflection students found the task performative, linked to academic requirements, where they needed to display emotional containment. Consequently, SWHS academics need to examine reflective writing about childhood adversity for assessment as this process may not enable students to build skills in critical reflection that drive professional development. 相似文献
The scope of student victimization occurring on college campuses is problematic, drawing the attention of researchers and campus officials. While most researchers of the disclosure of these unwanted experiences tend to examine just 1 form of victimization, a direct comparison of the disclosure of different types of campus victimization within a singular study is missing in the literature. The current study aimed to address this issue by examining 4 types of victimization experiences (unwanted sexual contact, unwanted sexual intercourse, intimate partner violence, and stalking) in a college population. A common set of possible predictors of disclosure were examined, including both demographic (e.g., gender, race, age) and situational factors (e.g., alcohol use, level of fear, relationship with perpetrator). While patterns of similarity across all victimization experiences emerged, the impact of gender, race, age, and alcohol use on disclosure decisions varied substantially by victimization type. The findings of this study address the gap in the current literature by providing a comparison and contrast of the influence of predictors across different types of victimization. Furthermore, the findings provide needed information that could help colleges and universities develop ways to encourage support-seeking and reporting among students. 相似文献
A growing amount of research uses the Minority Stress Model [Meyer, Psychological Bulletin, 129(5), 674–697 (2003). 10.1037/0033-2909.129.5.674] to explore the effects of discrimination on the well-being of transgender people. Most of this research focuses on the effects of overt discrimination and the anticipation of discrimination, but few studies have explored the internal aspect of minority stress for transgender people. This may be because current measurement options are limited. To address this oversight, our study developed the Scale of Internalized Trans Oppression (SITO). The SITO moves beyond current measures of internalized prejudice to, instead, assess for the ubiquitous effects of internalized oppression. Results from our exploratory factor analysis provide preliminary evidence of a four-factor structure. Reliability analyses have established high internal consistency for both the Self-Doubt from Oppression subscale and Openness about Gender Identity subscale. Additionally, the Horizontal Hostility from Oppression subscale and the Fortitude subscale showed good internal consistency. Finally, research and clinical implications are discussed for this preliminary version of the SITO.
Although a fully general extension of ROC analysis to classification tasks with more than two classes has yet to be developed, the potential benefits to be gained from a practical performance evaluation methodology for classification tasks with three classes have motivated a number of research groups to propose methods based on constrained or simplified observer or data models. Here we consider an ideal observer in a task with underlying data drawn from three univariate normal distributions. We investigate the behavior of the resulting ideal observer’s decision variables and ROC surface. In particular, we show that the pair of ideal observer decision variables is constrained to a parametric curve in two-dimensional likelihood ratio space, and that the decision boundary line segments used by the ideal observer can intersect this curve in at most six places. From this, we further show that the resulting ROC surface has at most four degrees of freedom at any point, and not the five that would be required, in general, for a surface in a six-dimensional space to be non-degenerate. In light of the difficulties we have previously pointed out in generalizing the well-known area under the ROC curve performance metric to tasks with three or more classes, the problem of developing a suitable and fully general performance metric for classification tasks with three or more classes remains unsolved. 相似文献
Several recent studies have explored what Michael (e.g., 1982) termed the value-altering effect and the behavior-altering effect of motivating operations. One aspect of the behavior-altering effect that has garnered no recent attention involves changes in stimulus control produced by motivating operations. To call attention to this aspect of the behavior-altering effect, we herein review 11 studies that are concerned with the influence of varying levels of food or water deprivation on stimulus generalization. These studies suggest that motivating operations influence stimulus control (a) by changing the evocative strength of not just an established discriminative stimulus, but also of stimuli that are physically similar to it; (b) by changing the range of stimuli that evoke the operant in question; and (c) by exerting these effects in a graded fashion. These findings are potentially of conceptual and applied significance, and it appears that further research examining how motivating operations alter stimulus control, including some studies suggested herein, is warranted. 相似文献
Little is known about psychological distress among women of African descent who are at high risk for a BRCA mutation. This is a group for whom breast cancer risk reduction is critical due to the group’s high rates of breast cancer mortality. Distress is important to consider as it may reduce the potential benefit of genetic counseling and negatively affect decision making related to risk reduction. The goals of the current study were to examine breast cancer-specific distress and depressive symptoms in women of African descent at who are at high risk for a BRCA mutation and to identify background factors associated with these outcomes. Participants were 148 high-risk African American and Caribbean women who were part of a larger study that offered participants BRCA counseling at no cost. Participants completed the Impact of Events Scale, which assessed breast cancer-specific distress, and the Center of Epidemiological Studies-Depression Scale, which assessed depressive symptoms. Results of analyses revealed that almost half of the sample achieved scores indicating high and clinically significant breast cancer-specific distress, while almost one-third had clinically significant depression scores. Results further showed that low income was significantly associated with cancer-specific distress, while having a cancer diagnosis was significantly associated with depressive symptoms. These results underscore the need for targeted psychological support throughout the genetic risk assessment process for this particular high-risk group. 相似文献
International advocacy of patient-centred healthcare delivery has led to emphasis on the (re)design and evaluation of healthcare processes and outcomes from a patient perspective. Patient-reported outcome measures (PROMs) have significant potential to inform such attempts. However there is limited understanding of the processes by which this can be achieved. This exploratory study followed attempts to utilise two different PROMs measures to support service quality improvement in clinical genetics. PROMs used were the Genetic Counseling Outcome Scale (GCOS-24), a well-validated clinical genetics-specific PROM and Euroqol (EQ-5D), a generic PROM favoured by the UK National Institute for Health and Excellence (NICE). Both of these PROMs enable pre/post intervention comparison. A service audit tool was also used, premised on a patient-reported experience measure. In addition, the study draws on interviews with clinical staff to identify challenges associated with the use of PROMs (response rate, data collection, analysis). Benefits are also explored and include the provision of insight into patients’ needs; complementing clinical judgement; identification of needs being met, evidencing the benefit of services provided; prompting consideration of areas requiring attention; and encouraging professional development. 相似文献