Three-level meta-analysis of dependent effect sizes

Although dependence in effect sizes is ubiquitous, commonly used meta-analytic methods assume independent effect sizes. We describe and illustrate three-level extensions of a mixed effects meta-analytic model that accounts for various sources of dependence within and across studies, because multilevel extensions of meta-analytic models still are not well known. We also present a three-level model for the common case where, within studies, multiple effect sizes are calculated using the same sample. Whereas this approach is relatively simple and does not require imputing values for the unknown sampling covariances, it has hardly been used, and its performance has not been empirically investigated. Therefore, we set up a simulation study, showing that also in this situation, a three-level approach yields valid results: Estimates of the treatment effects and the corresponding standard errors are unbiased.     

Priming the mental time-line: effects of modality and processing mode

The notion of a mental time-line (i.e., past corresponds to left and future corresponds to right) supports the conceptual metaphor view assuming that abstract concepts like “time” are grounded in cognitively more accessible concepts like “space.” In five experiments, we further investigated the relationship between temporal and spatial representations and examined whether or not the spatial correspondents of time are unintentionally activated. We employed a priming paradigm, in which visual or auditory prime words (i.e., temporal adverbs such as yesterday, tomorrow) preceded a colored square. In all experiments, participants discriminated the color of this square by responding with the left or the right hand. Although the temporal reference of the priming adverb was task irrelevant in Experiment 1, visually presented primes facilitated responses to the square in correspondence with the direction of the mental time-line. This priming effect was absent in Experiments 2, 3, and 5, in which the primes were presented auditorily and the temporal reference of the words could be ignored. The effect, however, emerged when attention was oriented to the temporal content of the auditory prime words in Experiment 4. The results suggest that task demands differentially modulate the activation of the mental time-line within the visual and auditory modality and support a flexible association between conceptual codes.     

Social Anxiety,Social Skills and Expectancy/ Cost of Negative Social Events

Abstract

The aim of the study was to investigate the relationships between social anxiety, social skills and estimated cost as well as expectancy of negative social/non-social events. One hundred and twenty-six students (half males and half females) filled in the Social Phobia and Anxiety Inventory (SPAI), the Social Skills Inventory (SSI), and measures of expectancy and estimated cost of negative social and non-social events. Social anxiety was negatively correlated with self-reported social skills. Further, social anxiety was strongly related to both expectancy and estimated cost of negative social, as opposed to non-social, events. Social skills were related to expectancy, but not to estimated cost of negative social events. Finally, the correlation between social anxiety and expectancy of negative social events disappeared when social control (measured with a subscale of SSI) was partialized out of the relationship, whereas the correlation between social anxiety and estimated cost of negative social events did not. Potential therapeutic implications are discussed.     

Introducing Assertiveness Training in Hungary

Abstract

The preliminary results of an evaluation of a systematic assertiveness training programme (based on a cognitive-behavioural approach) in psychiatric care in Hungary are presented. The method adopted was specific to the Hungarian/Middle-European circumstances since people had difficulty in exercising their personal rights in the past. In groups of “neurotic” patients and comparison subjects three questionnaires (the Rathus-scale (R), the Assertiveness Inventory (AI) and the Uncertainty Questionnaire (UQ)) were administered at the beginning and at the end of the treatment. The training programme consisted of eight sessions with an emphasis on education about assertiveness and on the practice of skills such as saying “no” or standing up for oneself. A statistical analysis indicated significant improvement in the social skills of the participants, while an item analysis showed high internal consistency in all three questionnaires, and a concurrent validity analysis revealed a strong correlation between the Rathus-scale and the Assertiveness Inventory. The results indicate that assertiveness training can be used effectively in mental health care in Hungary.     

Sticks and Stones May Break My Bones but Words Relate to Adult Physiology? Child Abuse Experience and Women's Sympathetic Nervous System Response while Self-Reporting Trauma

Child abuse predicts a wide range of long-lasting deleterious outcomes, including disruptions in the biological systems central to emotion arousal and regulation. However, little is known about the specific ways in which child abuse affects adulthood sympathetic reactivity and recovery. This study investigated the association between child abuse experience and adult skin conductance level and habituation in 85 at-risk women as they completed a self-report trauma questionnaire. Childhood emotional abuse was independently associated with blunted skin conductance habituation over the course of survey completion after controlling for other abuse subtypes and current trauma symptoms. These results suggest that women emotionally abused as children experience prolonged emotional arousal and poor physiological regulation of emotion in response to reminders of traumatic experiences.     

The Use of Mental Health Services Among Victims of Partner Violence on College Campuses

The present study investigated the relationship between past victimization of different types of intimate partner violence (IPV; physical, psychological, and sexual) and the likelihood of using mental health services. Results indicate 86% of participants reported experiencing some form of IPV, but only 16% of those victims used mental health services to address emotional problems. The participants reported embarrassment, expense, ineffectiveness, and social stigma as the most prominent barriers to seeking help from a mental health professional. The study also found that participants who experienced physical and psychological IPV, but not sexual IPV, reported using mental health services. Sexual IPV may elicit different barriers in help-seeking behaviors. Implications for college IPV prevention programs and mental health services are discussed.     

Recognition memory deficits in mild cognitive impairment

ABSTRACT

There is no agreement on the pattern of recognition memory deficits characteristic of patients diagnosed with mild cognitive impairment (MCI). Whereas lower performance in recollection is the hallmark of MCI, there is a strong controversy about possible deficits in familiarity estimates when using recognition memory tasks. The aim of this research is to shed light on the pattern of responding in recollection and familiarity in MCI. Five groups of participants were tested. The main participant samples were those formed by two MCI groups differing in age and an Alzheimer's disease group (AD), which were compared with two control groups. Whereas one of the control groups served to assess the performance of the MCI and AD people, the other one, composed of young healthy participants, served the purpose of evaluating the adequacy of the experimental tasks used in the evaluation of the different components of recognition memory. We used an associative recognition task as a direct index of recollection and a choice task on a pair of stimuli, one of which was perceptually similar to those studied in the associative recognition phase, as an index of familiarity. Our results indicate that recollection decreases with age and neurological status, and familiarity remains stable in the elderly control sample but it is deficient in MCI. This research shows that a unique encoding situation generated deficits in recollective and familiarity mechanisms in mild cognitive impaired individuals, providing evidence for the existence of deficits in both retrieval processes in recognition memory in a MCI stage.     

Coping with HIV Related Stigma and Well-Being

The goal of this study was to analyze the relationships to be found among stigma perception, active and avoidant coping strategies, and subjective and psychological well-being in a sample of 133 people with HIV. The results showed that stigma perception and avoidant coping strategies (venting, self-blame, denial, behavioural disengagement and substance use) were positively associated, whereas, both stigma perception and avoidant coping were negatively associated with different measures of well-being (affect balance, self-acceptance and environmental mastery). These negative relationships between stigma perception and the three well-being measures were mediated by the use of avoidant coping strategies. Results suggest that psychosocial intervention programs for people who report psychological distress arising from prejudice must be aimed at developing appropriate ways to deal with this prejudice. Intervention programs should also include strategies to directly increase well-being since from a positive psychology viewpoint certain interventions have been shown to do so, and HIV research has also shown that well-being is associated with lower mortality rates.     

Factor structure of the construct of adaptive behavior in children with and without intellectual disability

Although the presence of significant limitations in adaptive behavior constitutes one of the three necessary criteria for diagnosing intellectual disability, adaptive behavior structure has always been the subject of considerable controversy among researchers. The main goal of this study is to extend previous research results that provide further support to a multidimensional structure of conceptual, social, and practical skills compared to the unidimensional structure. One-factor and 3-correlated factors models as measured by 15 observable indicators were analyzed by means of confirmatory factor analysis (CFA), as well as their relationships with one second-order factor (i.e., adaptive behavior). To that end, 388 children with and without intellectual disabilities were assessed with the Diagnostic Adaptive Behavior Scale (DABS). Results of CFA indicated that the 3 first-order factors solution provides the best fit to the data. Reliability and validity of the multidimensional model were also analyzed through different methods such as the composite reliability and the average variance extracted. Finally, implications of these findings and possible directions for future research are discussed.