A Systematic Review on the Evolution of Power Analysis Practices in Psychological Research.

Performing hypothesis tests with adequate statistical power is indispensable for psychological research. In response to several large-scale replication projects following the replication crisis, concerns about the root causes of this crisis - such as questionable research practices (QRPs) - have grown. While initial efforts primarily addressed the inflation of the type I error rate of research due to QRPs, recent attention has shifted to the adverse consequences of low statistical power.

Unraveling relationship dynamics in sports teams: A primer on the social relations model.

Interpersonal behavior in sports teams are inherently intricate. The Social Relations Model (SRM) presents a compelling framework to conceptualize and dissect these complexities, enabling the empirical testing of theories concerning relationships within group settings. The SRM decomposes dyadic measurements obtained from a round-robin design into components at the individual (actor and partner) level, relationship level, and team level.

Understanding the Ebbs and Flows of Sexual Desire: A Daily Diary Study on the Temporal Associations Between Dyadic Sexual Desire and Partner Interactions.

Sexual desire has often been conceptualized and studied as an individual trait. However, empirical evidence suggests that there is also value in studying it as a state and dyadic construct. Through a daily diary study with a randomized controlled experimental design, we aimed to explore (i) how the roles that partners fulfill in dyadic interactions are associated with daily fluctuations in dyadic sexual desire, (ii) whether these roles can be leveraged to affect sexual desire for one's partner, and (iii) whether effects of partner interactions on dyadic sexual desire vary by gender.

Prediction Model for Defects in Lead and Lead-free Aprons.

Personal radiation protective equipment (PRPE) is prone to defects in the attenuating layers, resulting in inadequate protection. Hence, quality control (QC) of PRPE is needed to assess its integrity. Unfortunately, QC of PRPE is laborious and time consuming.

Is passion contagious in coach-athlete dyads? A dyadic exploration of the association between passion, affective and need-based experiences in individual sports.

The Dualistic Model of Passion distinguishes between harmonious and obsessive passion, which are associated with athletes' and coaches' adjustments. Whereas prior research sampled either athletes or coaches, the present study used a dyadic approach to explore the bidirectional influence of passion on affective experiences in coaches and athletes. Using a cross-sectional dyadic design, 198 coach-athlete dyads involved in an individual sport at different competition levels, reported on their passion, need-based, and affective experiences.

Predictors and outcomes of sports coaches' athlete-invested contingent self-worth.

Some sports coaches not only invest considerable time and energy in their athletes, but also attach their self-worth to the successes and failures of their athletes. Grounded in Self-Determination Theory, the present study aimed to examine the theoretical predictors and outcomes of such Athlete-Invested Contingent Self-worth (AICS). Results from a cross-sectional study (Study 1; N = 740, M = 34.

The Ghent Psychotherapy Study: A Pragmatic, Stratified, Randomized Parallel Trial into the Differential Efficacy of Psychodynamic and Cognitive-Behavioral Interventions in Dependent and Self-Critical Depressive Patients.

Introduction: Different types of psychotherapy are effective for treating major depressive disorder across groups yet show large within-group differences. Patient personality style is considered a potentially useful variable for treatment matching.

Objective: This study is the first experimental test of the interaction between therapeutic approach and patients' dependent versus self-critical personality styles.

The Role of Dyadic Sexual Desire Similarity in Predicting Sexual Behaviors in Cohabitating Couples: An Ecological Momentary Assessment Study.

Although researchers are increasingly paying attention to the dyadic nature of sexual desire and its relevance to sexual and relational outcomes, our understanding of how sexual desire operates on a couple level and how it may influence the occurrence of sexual activity in relationships remains limited. This study used ecological momentary assessments to explore to what extent similarity in levels of desire for sex with one's sexual partner, or dyadic sexual desire, was associated with sexual initiations, receptivity to one's partner's initiations, and partnered sexual activity, and how these associations were moderated by perceived partner support. Ninety-four cohabitating couples (= 26.

Daily Sexual Behavior, Sexual Esteem, and Body Image in Transgender and Cisgender Individuals.

Multiple surveys have suggested that transgender individuals show lower sexual well-being than cisgender individuals. Most studies, however, are limited in terms of ecological validity and memory bias and cross-sectional in nature. These issues are less prevalent in diary studies monitoring responses over time at home.

An examination of the reciprocal associations between physical activity and anxiety, depressive symptoms, and sleep quality during the first 9 weeks of the COVID-19 pandemic in Belgium.

During the initial outbreak of the global COVID-19 pandemic, many countries imposed a total lockdown (containment at home). Although it was still allowed in Belgium to be physically active or exercise with people from your household in the vicinity of your home, engaging in sports or physical activity in a group or club context was no longer permitted. To examine whether a lack of physical activity was potentially threatening to the mental well-being of citizens and vice versa, the present study examined concurrent and reciprocal relationships between physical activity and anxiety, depressive symptoms, and sleep quality during the COVID-19 lockdown in a 9-week longitudinal design.

When You Can't Play Sports: The Impact of the COVID-19 Pandemic on Motivational and Emotional Experiences in Coach-Athlete Dyads.

(1) Background: This study aimed to assess the influence of the COVID-19 pandemic on athletes' and coaches' experiences. Following the Dualistic Model of Passion and the Self-determination Theory, the objectives of this study were to investigate whether the COVID-19 pandemic and its restrictions affected athletes' and coaches' passion experiences, emotional experiences and basic psychological needs while engaging in their sport activities. Furthermore, the relationship between passion and emotional experiences as well as between passion and the basic psychological needs were explored; (2) Methods: 87 coach-athlete dyads, active at the recreational or competitive level in an individual sport, participated in the study.

Dealing With Autocorrelation in the Single Case AB-Design: A Study Assessing the Mediating Effect of Infant Crying on the Relation Between Responsive Soothing and Infant Sleep.

Mediation analysis is widely adopted by researchers to disentangle the causal pathways by which an intervention affects an outcome. This paper describes a model to estimate the direct and indirect effect from a single subject AB-design with repeated assessments of both the mediator and the outcome. We discuss the plausibility of the modeling assumptions and contrast different approaches to deal with the autocorrelation in the time series data.

Disentangling indirect effects through multiple mediators without assuming any causal structure among the mediators.

hen multiple mediators exist on the causal pathway from treatment to outcome, path analysis prevails for disentangling indirect effects along paths linking possibly several mediators. However, separately evaluating each indirect effect along different posited paths demands stringent assumptions, such as correctly specifying the mediators' causal structure, and no unobserved confounding among the mediators. These assumptions may be unfalsifiable in practice and, when they fail to hold, can result in misleading conclusions about the mediators.

A Practical Tool for Family Assessment Based on the Social Relations Model.

An empirically based family assessment can help family therapists understand how a family functions. In systemic therapy a family is seen as a dynamic system in which the family members form interdependent subsystems. The Social Relations Model (SRM) is a useful tool to study such interdependence within a family.

Well-being and Perceived Stigma in Individuals With Rheumatoid Arthritis and Fibromyalgia: A Daily Diary Study.

Introduction: The presence or absence of clearly defined symptoms and underlying pathophysiology may be a crucial variable related to variability in well-being and stigmatization in individuals with chronic pain (ICPs). In the context of pain, absence of clearly defined symptoms and pathophysiology deviates from the widely endorsed biomedical model and as such, may lead to stigmatization, which in turn could be related to ICPs' well-being.

Objectives: The present study compared physical, psychological, social well-being, and perceived stigmatization in individuals with clearly defined symptoms and underlying pathophysiology (rheumatoid arthritis, RA) and individuals with less well understood symptoms and pathophysiology (fibromyalgia, FM) using daily diaries.

Nonlinear mediation analysis with high-dimensional mediators whose causal structure is unknown.

With multiple possible mediators on the causal pathway from a treatment to an outcome, we consider the problem of decomposing the effects along multiple possible causal path(s) through each distinct mediator. Under a path-specific effects framework, such fine-grained decompositions necessitate stringent assumptions, such as correctly specifying the causal structure among the mediators, and no unobserved confounding among the mediators. In contrast, interventional direct and indirect effects for multiple mediators can be identified under much weaker conditions, while providing scientifically relevant causal interpretations.

Reformulating and Mirroring in Psychotherapy: A Conversation Analytic Perspective.

The conversational actions of reformulating and mirroring constitute some of the core intervention techniques of psychotherapy. The purpose of the present study was to investigate the way in which therapists in cognitive-behavioral (CBT) and psychodynamic therapy (PDT) use reformulating and mirroring strategies to return patients' prior talk and how their differential usage can be viewed in light of the respective manualized recommendations. A mixed methods approach was applied using qualitative data that derived from a RCT.

A quest for self-soothing: A systematic case study into emotion-focused therapy with an emotionally avoidant client who committed sexual offenses.

Objective: The current study is part of a multiple case study that investigated the emotional change in individuals who have committed sexual offenses (ISOs). This case study highlights how one client used sex as a maladaptive coping strategy to suppress negative emotions.

Method: A mixed-methods design was used to track changes in the client's affect regulation (AR) during four phases, including a baseline (Phase A), treatment as usual (Phase B), treatment with an emotion-focused therapy (EFT) component added (Phase C), and follow up (Phase A).

Estimation of Controlled Direct Effects in Longitudinal Mediation Analyses with Latent Variables in Randomized Studies.

In a randomized study with longitudinal data on a mediator and outcome, estimating the direct effect of treatment on the outcome at a particular time requires adjusting for confounding of the association between the outcome and all preceding instances of the mediator. When the confounders are themselves affected by treatment, standard regression adjustment is prone to severe bias. In contrast, G-estimation requires less stringent assumptions than path analysis using SEM to unbiasedly estimate the direct effect even in linear settings.

Investigating How Parental Instructions and Protective Responses Mediate the Relationship Between Parental Psychological Flexibility and Pain-Related Behavior in Adolescents With Chronic Pain: A Daily Diary Study.

Background: Parental behavior can influence how well adolescents cope with chronic pain. Previous research has largely focused on how parents negatively impact adolescent functioning. Yet more recent work suggests that parents - and particularly parental psychological flexibility - can foster better adolescent pain-related functioning.

A Network Analysis of Potential Antecedents and Consequences of Pain-Related Activity Avoidance and Activity Engagement in Adolescents.

Objective: This study sets out to identify potential daily antecedents and consequences of pain-related activity avoidance and engagement behavior in adolescents with chronic pain.

Methods: Adolescents (N = 65, Mage = 14.41) completed baseline self-reports and a diary for 14 days.

Couples Dealing With Pediatric Blood Cancer: A Study on the Role of Dyadic Coping.

Pediatric cancer is a life-threatening disease that poses significant challenges to the ill child and his/her parents. Among the studies investigating risk and protective factors for the individual and relationship adjustment of parents being confronted with pediatric cancer, couple factors - such as dyadic coping - gained little research attention. Therefore, the aim of the current study was to explore the association between dyadic coping and individual/relationship outcomes of parents in the context of pediatric cancer.

Therapists' responses toward dependent (anaclitic) and self-critical (introjective) depressed outpatients: A multilevel approach.

Drawing on Blatt's theory about personality styles, we examined therapists' affective experiences toward depressed patients with dependent (anaclitic) and self-critical (introjective) personality styles. In addition, we investigated the relationship between therapists' responses, symptom severity, and therapeutic change. Therapists (N = 8) completed the Therapist Response Questionnaire (TRQ) at 5 time points for 50 dependent (anaclitic) and 34 self-critical (introjective) patients (N = 84) over the course of 20-session therapies.

A bootstrap version of the Hausman test to assess the impact of cluster-level endogeneity beyond the random intercept model.

In the random intercept model for clustered data, the random effect is typically assumed to be independent of predictors. Violation of this assumption due to unmeasured cluster-level confounding (endogeneity) induces bias in the estimates of effects of within-cluster predictors. Treating cluster-specific intercepts as fixed rather than random avoids this bias.