Effects of schedule and magnitude of reinforcement under conditions of thirst motivation

In contrast to a recent finding (Macdonald, G. E., & De Toledo, L. Learning and Motivation, 1974, 5, 288–298.) the results of three experiments investigating various partial reinforcement (PRF) manipulations under conditions of thirst motivation demonstrated strong similarity to analogous manipulations involving food reward. Specifically, for animals receiving water reinforcement, PRF was shown to generate greater resistance to extinction than continuous reinforcement (Expt 1 & 3), the schedule of reinforcement was shown to interact with level of acquisition (Expt 1 and 2), and the magnitude of the partial reinforcement extinction effect was shown to be a function of reward magnitude (Expt 3). These results provide strong evidence that mechanisms which operate in partial reinforcement situations are highly similar, regardless of the type of appetitive reinforcement.     

Component processes of an overt rehearsal strategy in young children

The locus of facilitation due to rehearsal was investigated in three experiments with first-grade children. Several different overt acquisition strategies in a four-item sequential memory task were compared, including ordered repetition, item repetition, item labeling, and free strategy conditions. Experiment 1 showed that ordered repetition yields most of the facilitation due to rehearsal, and Experiment 2 demonstrated that the facilitation cannot be attributed to spaced practice. Experiment 3 showed that retrieval practice during study may improve memory performance but that the facilitation due to ordered repetition and retrieval practice is relatively short term. Mere repetition and labeling were not found to be significant component processes of rehearsal in any of the experiments. These results were discussed in terms of their relevance to rehearsal training studies and a differentiation between maintenance and elaborative rehearsal.     

Revisiting an Analysis of Threats to Internal Validity in Multiple Baseline Designs

In our previous article on threats to internal validity of multiple baseline design variations (Slocum et al., 2022), we argued that nonconcurrent multiple baseline designs (NCMB) are capable of rigorously demonstrating experimental control and should be considered equivalent to concurrent multiple baselines (CMB) in terms of internal validity. We were fortunate to receive five excellent commentaries on our article from experts in single-subject research design—four of whom endorsed the conclusion that NCMBs should be considered strong experimental designs capable of demonstrating experimental control. In the current article, we address the most salient points made in the five commentaries by further elaborating and clarifying the logic described in our original article. We address arguments related to classic threats including maturation, testing and session experience, and coincidental events (history). We rebut the notion that although NCMBs are strong, CMBs provide an increment of additional control and discuss the application of probability-based analysis of the likelihood of threats to internal validity. We conclude by emphasizing our agreement with many of the commentaries that selection of single-case experimental designs should be based on the myriad subtleties of research priorities and contextual factors rather than on a decontextualized hierarchy of designs.     

Reappraisal Buffers the Association Between Stress and Negative Mood Measured Over 14 Days: Implications for Understanding Psychological Resilience

Reappraisal is thought to be an adaptive emotion regulation strategy, and research suggests that individuals who habitually reappraise report more positive patterns of affect overall. However, some experimental studies indicate that a greater tendency to reappraise can exacerbate stress response, and it is unclear whether reappraisal confers resilience or exacerbates response to naturally occurring stressors. In order to address this, the present study investigated whether reappraisal prospectively moderated the association between daily stressors and daily negative mood measured over 14 days. Participants (n = 236) completed a measure of reappraisal at baseline, before completing daily online entries of stress and positive and negative mood. Data were analysed using multilevel modelling. Results suggested that reappraisal moderated the association between stress and negative mood, such that higher levels of reappraisal were associated with lower levels of negative mood in response to stress. Moreover, higher reappraisal was also independently associated with lower levels of daily negative mood and higher levels of positive mood. These results suggest that higher reappraisal may confer resilience to stress. Copyright © 2016 European Association of Personality Psychology     

Evaluating the method of levels

An investigation of the method of levels (MOL) was undertaken. Based on the principles of perceptual control theory (PCT), MOL is a way of helping people to reduce psychological distress. MOL assumes that psychological distress results when people are unable to control experiences that are important to them. The approach was implemented over six months in a large urban GP practice. Patients attended for between one and six sessions. Patients who attended for more than one session demonstrated significant reductions in scores of symptomatology on a standardized questionnaire. Effect sizes of these differences were relatively large. There appeared to be no relationship between the number of sessions a patient attended and the amount of reduction in symptomatology that was recorded. Similarly, there was no relationship between the number of sessions a patient attended and their recorded level of symptomatology at their first appointment. Although the study has important limitations we suggest that these findings might offer new directions for future research and might provide a way of unifying the specific and common factors as well as understanding the Dodo Bird effect.     

Rejection sensitivity,complaint‐related communication,and relational satisfaction: A mediation analysis

This study examines the links among rejection sensitivity (RS), communication about complaints, and relational satisfaction in intimate relationships. A total of 260 individuals completed an online survey through Amazon Mechanical Turk. RS was positively associated with complaint avoidance and negatively associated with positive politeness and negative politeness when voicing complaints. Furthermore, RS had indirect associations with relational satisfaction, partially mediated through complaint avoidance and positive politeness. The results of this study suggest that communicating complaints openly to one's partner, in concert with positive politeness (i.e., affirming the partner while voicing complaints), may help serve as a buffer against relational dissatisfaction associated with RS.     

Poisoning Severity Associated with a Range of Medications in Suicide Attempts by Ingestion

There are limited data on the medical severity of suicide attempts by intentional self‐poisoning (ISP) associated with ingestion of differing classes of medications and meager data on specific agents. The purpose of the study was to address these gaps. This was an analysis of a consecutive series of ISP cases ages 13 to 65 treated at a U.S. university medical center (N = 671). The outcome, poisoning severity, was dichotomized as “moderate‐severe” and “low” (reference) based on a standard measure. Class of medication (e.g., opiate) and specific agents ingested were the predictors of interest. Covariates were age, sex, and the ingestion of multiple classes of medications. Data were analyzed using multivariate logistic regression models. At the class level, ingestion of opiate was uniquely associated with increased risk for moderate‐severe ISP at a statistically significant level, adjusted odds ratio (95% CI) = 2.97 (1.69, 5.21), p = .0002. Several specific agents were also associated with moderate‐severe ISP. Along with the key role of opiate medications in unintentional overdose morbidity and mortality, opiate medications may also play an important and largely unrecognized role in medically serious suicidal behavior. Results also underscore the variability in toxicity of specific agents within drug classes.     

Can a Supportive Workplace Impact Employee Resilience in a High Pressure Performance Environment? An Investigation of the Chinese Banking Industry

Resilience is one of the positive emotions that will enhance employees’ ability to cope in adverse conditions, such as work intensification, organisational change, and work stress. Despite growing research interest in the employee resilience area, there is limited knowledge of the process through which critical social support at workplaces, such as supportive leadership and co-worker support, affects employees’ ability to cope in challenging situations. This study, underpinned by the theory of conservation of resources and social cognitive theory, examines the role of supportive leadership and co-worker support in employee resilience, and how this may be moderated by work pressures in the context of the Chinese banking industry. Using a sample of 2,025 Chinese banking workers, we tested four hypotheses. Our findings demonstrate that supportive leadership and co-worker support are positively associated with employee resilience. High work pressure moderates the relationship between both supportive leadership and co-worker support and employee resilience, such that the relationship between these conditions is stronger when perceived performance pressure is high. Our study raises important implications for both the theoretical development of employee resilience and for management practices with respect to fostering employee resilience in organisations.