Many Labs 5:Testing pre-data collection peer review as an intervention to increase replicability

Replication studies in psychological science sometimes fail to reproduce prior findings. If these studies use methods that are unfaithful to the original study or ineffective in eliciting the phenomenon of interest, then a failure to replicate may be a failure of the protocol rather than a challenge to the original finding. Formal pre-data-collection peer review by experts may address shortcomings and increase replicability rates. We selected 10 replication studies from the Reproducibility Project: Psychology (RP:P; Open Science Collaboration, 2015) for which the original authors had expressed concerns about the replication designs before data collection; only one of these studies had yielded a statistically significant effect (p < .05). Commenters suggested that lack of adherence to expert review and low-powered tests were the reasons that most of these RP:P studies failed to replicate the original effects. We revised the replication protocols and received formal peer review prior to conducting new replication studies. We administered the RP:P and revised protocols in multiple laboratories (median number of laboratories per original study = 6.5, range = 3?9; median total sample = 1,279.5, range = 276?3,512) for high-powered tests of each original finding with both protocols. Overall, following the preregistered analysis plan, we found that the revised protocols produced effect sizes similar to those of the RP:P protocols (?r = .002 or .014, depending on analytic approach). The median effect size for the revised protocols (r = .05) was similar to that of the RP:P protocols (r = .04) and the original RP:P replications (r = .11), and smaller than that of the original studies (r = .37). Analysis of the cumulative evidence across the original studies and the corresponding three replication attempts provided very precise estimates of the 10 tested effects and indicated that their effect sizes (median r = .07, range = .00?.15) were 78% smaller, on average, than the original effect sizes (median r = .37, range = .19?.50)

A multi-country test of brief reappraisal interventions on emotions during the COVID-19 pandemic.

The COVID-19 pandemic has increased negative emotions and decreased positive emotions globally. Left unchecked, these emotional changes might have a wide array of adverse impacts. To reduce negative emotions and increase positive emotions, we tested the effectiveness of reappraisal, an emotion-regulation strategy that modifies how one thinks about a situation. Participants from 87 countries and regions (n = 21,644) were randomly assigned to one of two brief reappraisal interventions (reconstrual or repurposing) or one of two control conditions (active or passive). Results revealed that both reappraisal interventions (vesus both control conditions) consistently reduced negative emotions and increased positive emotions across different measures. Reconstrual and repurposing interventions had similar effects. Importantly, planned exploratory analyses indicated that reappraisal interventions did not reduce intentions to practice preventive health behaviours. The findings demonstrate the viability of creating scalable, low-cost interventions for use around the world

Attention Deficit Hyperactivity Disorder

Excerpt According to the fifth edition of the Diagnostic and Statistical Manual of Mental Disorders, the primary feature of attention deficit hyperactivity disorder (ADHD) is a consistent “pattern of inattention and/or hyperactivity-impulsivity that interferes with functioning or development” (American Psychiatric Association 2013, 61). The symptomatic presentation of ADHD varies, and the condition may be expressed in predominately inattentive symptoms, predominately hyperactive-impulsive symptoms, or a combination of both. The difficulties associated with ADHD may impact academic, occupational, social, and family functioning. ADHD is classified as a neurodevelopmental disorder with genetic and neurological factors as the primary etiologies. These genetic and neurological factors are believed to interact with environmental, psychosocial, and learning factors to affect the course and presentation of ADHD (Barkley 2014).https://nsuworks.nova.edu/cps_facbooks/1618/thumbnail.jp

Suicidality in Homeless Children and Adolescents: A Systematic Review

Suicide has been found to be the leading cause of death in the homeless youth population. Mortality rates due to suicide in this cohort can be 12–40 times more elevated than those observed in the general population. Therefore, a systematic review of the literature was conducted in order to investigate potential factors associated with suicidality among homeless children and adolescents. After a thorough investigation of peer-reviewed articles from main databases in this literature (ProQuest and EBSCO), a final number of 94 articles were studied to produce the contents of this systematic review. Factors associated with suicidality were divided into two main categories, namely risk factors and protective factors. The results of this review revealed significant risk factors including gender, sexual orientation, history of abuse, mental health diagnoses, negative coping styles, duration of homelessness, and survival sex. Conversely, this review identified protective factors associated with suicidality among homeless children and adolescents, such as the role of resilience, positive coping strategies, and supportive school environment. Given the impact of suicide rates in this already at-risk population, understanding these factors becomes paramount knowledge related to long-term outcomes for the homeless youth population