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41.
This experiment tested for age-linked asymmetries predicted under Node Structure theory (NST; D. G. MacKay & D. M. Burke, 1990) between detecting versus retrieving orthographic information. Older adults detected that briefly presented words were correctly spelled (e.g., endeavor) or misspelled (e.g., endeavuor) as readily as did young adults. However, they were less able than young adults to retrieve the correctly and incorrectly spelled words that they had seen. These age-linked asymmetries were not due to educational factors, stimulus characteristics, sensory-level factors, task complexity, floor or ceiling effects, general slowing, or cohort-related activities, but they were consistent with NST predictions and with similar asymmetries in a wide range of other studies. By contrast, repetition deficits in detecting and retrieving repeated- versus unrepeated-letter misspellings (e.g., elderdly vs. elderkly) were symmetrical or equivalent in magnitude for young and older adults. Implications for a wide range of theories of cognitive aging and of repetition deficits are discussed. 相似文献
42.
The current study assessed the effects of fixed-time reinforcement schedules on problem behavior of students with emotional-behavioral disorders in a clinical day-treatment classroom setting. Three elementary-aged students with a variety of emotional and behavioral problems participated in the study. Initial functional assessments indicated that social attention was the maintaining reinforcer for their verbally disruptive behavior. Baseline phases were alternated with phases in which attention was provided on fixed-time schedules in the context of an ABAB design. The results indicated that the provision of attention on fixed-time schedules substantially reduced the participants' rate of verbal disruptions. These decreases were maintained during initial thinning of the schedules. The results provide one of the first examples that such an intervention can be successfully implemented in a classroom setting. 相似文献
43.
Karina W. Davidson James Peacock Ian M. Kronish Donald Edmondson 《Social and Personality Psychology Compass》2014,8(8):408-421
Behavioral interventions are typically studied with the use of a conventional between‐subject randomized controlled trial (RCT) design. In this design, the effect of an intervention on one group of patients is compared with the effect of a control condition on another group of patients, such that a between‐subject change is tested. A between‐subject design has an underlying assumption that there is a homogenous treatment effect for a behavioral intervention, drug, or psychotherapy and that the way the intervention operates in the study will tend to operate in the same way in many other patients. We review some of the philosophical and practical problems with the use of this design when a clinician is attempting to decide on a course of behavioral treatment aimed at within‐subject change in patients who are likely to have heterogeneous or unique responses to behavioral treatment. We also review the biases inherent in our current clinical practice model, which does not use any empirical data collection or design for testing if a treatment is useful, and also in the conventional between‐subject personalized medicine RCT designs. We propose increased use of single‐patient (also known as N‐of‐1) trials that employ within‐subject designs, in cases where treatment response is heterogeneous – as is the case for most psychological and behavioral treatments. Limitations of such designs include that they can only be used when the treatment is potentially reversible, the patient can act as their own control, and the outcome can be measured repeatedly. Increased use of within‐subject trials may address in many more instances the more clinically relevant question of how a specific patient will respond to a specific treatment and could introduce a more harmonious scientific approach into the way we treat our patients. We have incorporated a case presentation that illustrates the complexities of applying evidence drawn from these different designs to selecting and evaluating treatments for the behavioral issues commonly faced by clinicians and patients. 相似文献
44.
Ellen T. Matloff Danielle C. Bonadies Anne Moyer Karina L. Brierley 《Journal of genetic counseling》2014,23(2):164-171
We surveyed cancer genetics specialists in 1998 to learn what they would do if at 50 % risk to carry a BRCA or Lynch syndrome mutation. We chose to repeat our study 14 years later, to examine how perspectives have changed with the extensive data now available. In July 2012 we surveyed the National Society of Genetic Counselors (NSGC) Cancer Special Interest Group via an internet based survey. We found statistically significant increases in the percentage of specialists who: would undergo BRCA testing (p?=?0.0006), opt for prophylactic bilateral mastectomy (p =0.0001), opt for prophylactic removal of their uterus and ovaries for Lynch syndrome (p =0.0057 and P?=?0.0090, respectively), and bill testing to insurance (p >0.0001). There were also statistically significant decreases in the percentage of participants who would have their colon removed for Lynch syndrome (p?=?0.0002) and use an alias when pursuing testing (p?>?0.0001). Over the past 14 years there has been a major change in perspective amongst cancer genetic specialists regarding genetic testing, prophylactic surgery and insurance discrimination. 相似文献
45.
Karina Nielsen Raymond Randall 《European Journal of Work and Organizational Psychology》2013,22(5):601-617
Organizational-level occupational health interventions are often recommended when improvements in working conditions, employee health, and well-being are sought within organizations. Research has revealed that these interventions result in inconsistent effects despite being based on theoretical frameworks. This inconsistency indicates that intervention studies need to be designed to examine directly how and why such interventions bring about change and why they sometimes fail. We argue that intervention studies should include a process evaluation that includes a close examination of the psychological and organizational mechanisms that hinder and facilitate desired intervention outcomes. By drawing on existing intervention literature we present an evidence-based model containing three levels of elements that appear to be crucial in process evaluation. We describe how this model may be applied and developed in future research to identify better the mechanisms that link intervention processes to intervention outcomes. 相似文献
46.
47.
Karina L. Allen Susan M. Byrne Wendy H. Oddy Ross D. Crosby 《Journal of abnormal child psychology》2013,41(7):1083-1096
This study aimed to describe the course of early onset eating disorders in a population-based sample followed from 14 to 20 years; identify variables that could account for the persistence of eating disorders from 14 to 20 years; and describe outcome of early onset eating disorders with reference to general and psychological functioning at age 20. Participants (N?=?1,383; 49 % male) were drawn from the Western Australian Pregnancy Cohort (Raine) Study, which has followed children from pre-birth to young adulthood. Eating disorder symptoms were assessed using an adapted version of the Eating Disorder Examination-Questionnaire, at ages 14, 17 and 20. At age 14, 70 participants met DSM-IV criteria for a binge eating or purging eating disorder. Nearly half (44 %) of these adolescents ceased to meet criteria for an eating disorders at ages 17 and 20, whilst one-quarter still met criteria for an eating disorder at age 20 and one-fifth met criteria for an eating disorder at all three time points. Purging at age 17 and externalising behaviour problems at age 14 were the strongest predictors of eating disorder persistence to age 20. Participants who experienced a persistent eating disorder were less likely to complete high school than other participants, and reported pronounced depressive and anxiety symptoms at age 20. This study provides new data the course and outcome of early onset eating disorders at a population level. Behavioural difficulties in early adolescence and purging in middle adolescence may predict persistent eating pathology to young adulthood. 相似文献
48.
The current study examines the performance of the extended unconstrained approach (EXUC) and the latent moderated structural equation modeling procedure (LMS) in situations where quadratic and interaction terms are tested simultaneously and investigates their limitations with regard to the employment of parallel and congeneric measures, relatively low indicator reliabilities, and relatively large numbers of indicators. By means of a Monte Carlo study, we found LMS to be the best option for testing multiple nonlinear effects given sufficient sample size (n ≥ 500) and normally distributed exogenous variables. Its advantages became more prominent when indicator reliabilities were heterogeneous and small. The EXUC was a viable option for estimating the model when indicators were parallel and exhibited large indicator reliabilities. An empirical example of the results is provided, and the relevance of measurement model characteristics to assess nonlinear relationships is discussed. 相似文献
49.
Adolescents with high mental toughness adapt better to perceived stress: A longitudinal study with Swiss vocational students 总被引:1,自引:0,他引:1
Markus Gerber Serge Brand Anne Karina Feldmeth Christin Lang Catherine Elliot Edith Holsboer-Trachsler Uwe Pühse 《Personality and individual differences》2013
A mindset of mental toughness enables an individual to cope successfully with the pressures and demands of life. This 10-month study prospectively examined the association between mental toughness and stress resilience in 865 students (M = 17.86 years, 42.7% girls) from two vocational schools. Within each school, separate cluster analyses identified groups with different profiles of risk (assessed with perceived stress) and adaptation (operationalized with depressive symptoms and life satisfaction). Four clusters emerged characterizing students with well-adjusted (low risk, good adaptation), maladjusted (elevated risk, bad adaptation), deteriorated (low initial risk, worsening adaptation) and resilient profiles (elevated initial risk, improving adaptation). The latter two clusters reported similar levels of mental toughness at baseline, but resilient adolescents scored significantly higher on mental toughness at follow-up. After controlling for possible confounds, baseline toughness levels predicted depressive symptoms and life satisfaction over time. This study shows that mental toughness operates as a stress resilience resource. Mental toughness is, therefore a topic of interest for health specialists working with adolescent populations. 相似文献
50.
In this article, we examine the psychology of revenge. We begin by discussing challenges associated with defining revenge. We then review the relative costs and benefits associated with taking revenge. Although revenge can deter future harm, promote cooperation, and restore avengers’ self-worth and power, it can also contribute to conflict escalation and adverse psychological outcomes for avengers, such as depression and reduced life satisfaction. Next, we examine the prevalence of revenge. In distinguishing between the desire for revenge and act of revenge, we challenge the notion that the act of revenge is an automatic or pervasive response to injustice. We highlight four factors that influence whether victims of injustice choose to take revenge: the persistence of anger, perceptions of the costs of revenge, cultural and religious values regarding revenge, and the presence of external systems that can restore justice on behalf of victims. 相似文献