Bias-corrected Bootstrap Research Articles

The relationship between impostor phenomenon and emotional exhaustion among Chinese nurses: the mediating role of bi-directional work-family conflict

AimsThe study aims to explore the relationship between impostor phenomenon and emotional exhaustion among nurses and to examine the potential mediating role of bi-directional work–family conflict.MethodsA cross-sectional survey using convenience sampling was conducted from January to April 2023, involving 4,088 Chinese nurses. Of those, 3,977 nurses across 43 public hospitals completed the web-based survey that included a sociodemographic information questionnaire, the short Clance Impostor Phenomenon Scale, the Bi-directional Scale of Work–Family Conflict, and the Emotional Exhaustion Scale. SPSS with Hayes’s PROCESS v4.2 Macro was employed to examine the mediation model using bootstrap techniques.ResultsAfter controlling for confounding factors, impostor phenomenon was found to have a direct positive effect on emotional exhaustion (𝛽 = 0.134, 95% CI [0.122 to 0.145]); the two dimensions of work–family conflict, work interfering with family (𝛽 = 0.099, 95% CI [0.090 to 0.109]) and family interfering with work (𝛽 = 0.017, 95% CI [0.012 to 0.022]), served as parallel mediators in the relationship between impostor phenomenon and emotional exhaustion. Compared to family interfering with work, impostor phenomenon had a greater influence on emotional exhaustion through the mediation of work interfering with family, with a difference in the mediating effects of 0.082 (95% CI [0.073 to 0.096]). (The symbol β denotes the regression coefficient, estimated through mediation analysis using a bias-corrected bootstrapping procedure. CI represents the confidence interval for the specified parameter).ConclusionThis study reveals that impostor phenomenon not only directly affects emotional exhaustion but also exerts parallel mediation effects through bi-directional work–family conflict, with work interfering with family exerting a stronger mediating effect than family interfering with work. The findings elucidate the complex interplay between impostor phenomenon, an intrapersonal psychological factor, and work–family conflict, an interpersonal stressor, in contributing to emotional exhaustion among Chinese nurses, providing valuable insights to guide efforts aimed at safeguarding nurses’ mental health and well-being.

The effect of social media use on suicidal ideation in college students: Mediation by daytime sleepiness and sleep quality.

Social media use and daytime sleepiness are common among university students and have significant implications for their mental health. The aim of this study was to examine the effects of social media use on suicidal ideation among university students and to analyse the mediating effects of daytime sleepiness and sleep quality. A total of 5899 full-time undergraduate students were included in this study. Questionnaires were distributed and collected using the QuestionStar platform. Logistic regression analysis was used to examine the association between social media use, daytime sleepiness and sleep quality, and suicidal ideation among college students. The mediation model was tested using the bias-corrected percentile bootstrap method. Among 4835 students, 612 (12.66 %) reported having had suicidal ideation. Regression analysis revealed that social media use (OR = 1.09, 1.05-1.12), daytime sleepiness (OR = 1.09, 1.06-1.11), general and poor sleep quality (OR = 1.89, 1.56-2.28; OR = 4.82, 3.76-6.18) were all significantly and positively associated with suicidal ideation. Furthermore, there was a chain-mediated effect of daytime sleepiness and sleep quality on the relationship between social media use and suicidal ideation. Causality could not be explored by cross-sectional studies, and future cohort studies are needed. There was a chain-mediated effect between daytime sleepiness and sleep quality in the relationship between social media use and suicidal ideation. Therefore, it is recommended that students reduce their use of social media to improve their sleep quality and mental health.

Customer delight and switching behaviour in Tanzanian online banking: the mediating role of switching intentions

This study aimed to investigate the contribution of customer delight to customer switching behaviour and the mediating role of switching intentions in this relationship within the context of online banking services. An explanatory research design was employed, utilising survey data from 391 qualified online banking customers in Tanzania. Self-administered questionnaires were used, with respondents selected through a convenience sampling method. Data were analysed using partial least squares structural equation modelling in Smart-PLS version 4.0, with a 95% bias-corrected confidence interval bootstrapping estimation applied for mediation analysis. The findings reveal a significant negative influence of customer delight on switching behaviour, as well as the partial mediation of switching intentions in the relationship between customer delight and switching behaviour. This study enhances the understanding of the sequential nature of consumer switching behaviour among online banking customers. Furthermore, it highlights the importance of fostering affective delight among banking customers, which is crucial in mitigating the adverse effects of switching behaviour and promoting continued usage and future loyalty to the bank. Unlike previous studies that predominantly focus on the cognitive route to delight, this study is among the few that analyse the affective route to delight, employing a comprehensive approach to examine the switching behaviour of online banking customers, from intentions to actual behaviour.

Comparison of two processes based on quantile-based process capability indices by using fiducial generalized confidence interval

Selection of the better of two suppliers or assessing whether a process has improved after taking some corrective actions are important tasks in the manufacturing industry. Process capability indices (PCIs) are often used in such situations. In this paper, we propose a method to compare the performance of two processes or two suppliers based on PCIs. Estimation of fiducial generalized confidence interval (FGCI) of the difference and ratio of two well-known quantile-based process capability index (PCI) of two processes are discussed when the underlying distribution is a location-scale distribution or transformable to a location-scale distribution such as log location-scale distribution. We discuss the case of four important distributions namely normal, lognormal, Weibull and gamma distributions. Fiducial quantities (FQ) are estimated using the maximum likelihood estimator (MLE). The performance of the estimated FGCI is compared with three non-parametric bootstrap confidence intervals (BCIs) namely, standard bootstrap (SB), percentile bootstrap (PB) and bias-corrected percentile bootstrap (BCPB) in terms of coverage probability (CP) and average width (AW) via Monte Carlo simulation. It is observed through simulation that our proposed method performs better even for small sample sizes. Two examples are given to illustrate the applicability of our proposed method.

Estimation of a~New Asymmetry Based Process Capability Index 𝐶𝑐 for Gamma Distribution

Abstract In this work, we provide five different classical estimation methods for the gamma distribution and unknown parameters, which are used to estimate the newly constructed process capability index (PCI) C c C_{c} . Next, we use the aforementioned estimation techniques to consider five bootstrap confidence intervals: standard bootstrap (SB), percentile bootstrap (PB), student’s 𝑡 bootstrap (STB), bias-corrected percentile bootstrap (BCPB), and bias-corrected accelerated bootstrap (BCAB). These allow us to construct confidence intervals of the PCI C c C_{c} . Using the suggested techniques of estimate for small, moderate, and large sample sizes, Monte Carlo simulations are run to compare the performances of the bootstrap confidence intervals’ average widths and coverage probabilities. Simulation results indicate that MLE gives the least AW for all BCIs (SB, PB, BCPB, TB, and BCAB) when compared to all other estimation approaches evaluated in this paper. Further, simulation results demonstrate that, for almost all sample sizes and all of the examined estimation approaches, BCAB CI generates smaller AW and larger CP than their counterparts. Finally, for illustrative purposes, three real data sets are analysed.

Exploring the mediating role of self-hate in the relationship between adverse childhood experiences and non-suicidal self-injury among adolescents.

Non-suicidal self-injury (NSSI) has become a serious global problem among adolescents. This study aimed to explore the relationships between adverse childhood experiences, self-hate, and non-suicidal self-injury in adolescents. A total of 7009 adolescents participated in a survey from August 1 to December 31, 2023. The survey comprised the revised Adverse Childhood Experience (ACE) Questionnaire, Self-Hate Scale, and Adolescent Non-Suicidal Self-Injury Assessment Questionnaire. SPSS 22.0 was utilized for data entry and analysis. Spearman's correlation analysis was employed to examine the relationships between the variables. The bias-corrected nonparametric percentile bootstrap method was used to test the significance of the mediating effect. Adverse childhood experiences, self-hate, and non-suicidal self-injury were positively correlated. Adverse childhood experiences directly affected self-injury without obvious tissue damage. Self-hate mediated the relationship between adverse childhood experiences and self-injury without obvious tissue damage. Adverse childhood experiences directly affected self-injury with obvious tissue damage. Self-hate mediated between adverse childhood experiences and self-injury with obvious tissue damage. The data were cross-sectional, and the effects of adverse childhood experiences were not immediate. Further, because this was a subjective study, reporting bias was inevitable. Finally, future research should expand the discussion and improve the global relevance of the study. Self-hate mediates the relationship between adverse childhood experiences and NSSI in adolescents. This study explores the underlying mechanisms and influencing factors of NSSI in adolescents and provides important evidence-based support for the prevention and intervention of NSSI in adolescents with different characteristics to maintain adolescents' physical and mental health. Given the close relationships found between adverse childhood experiences, self-hate, and non-suicidal self-injury (NSSI) in adolescents, it is crucial to address adverse childhood experiences to prevent and treat NSSI. Providing necessary psychological support and interventions can help foster positive self-awareness, enhance self-esteem and self-efficacy, reduce self-disgust, and mitigate the negative effects of adverse childhood experiences.

The chain-mediating effects of negative physical sensation and experiential avoidance on exercise anxiety in college students.

The present study aimed to explore the potential mediating role of negative physical sensation and experiential avoidance in the association between endurance exercise and exercise anxiety among university students. In this study, a questionnaire method was employed to conduct the Adolescent Athlete Non-Intellectual Factors Survey Scale on 1,200 college students. From this sample, 287 individuals with exercise anxiety were identified through an endurance exercise test and the Acceptance and Action Questionnaire (AAQ-II) subsequently administered as well as The Borg Rating of Perceived Exertion (RPE). Subsequently, statistical analyses including correlation, regression, and mediation were performed using SPSS26 as the analytical tool. Additionally, the bias-corrected nonparametric percentile Bootstrap method was used to test for the mediating effects and estimate the confidence intervals with 5,000 iterations, and the confidence interval (CI) was set at 95%. Finally, in AMOS24, a mediating construct was established by incorporating exercise anxiety as the dependent variable, endurance exercise behavior as the independent variable, and negative physical sensations and experiential avoidance as the mediating variables (R = 0.619, R 2 = 0.384). A path analytic procedure was employed to test the hypotheses while percentile bootstrap analysis was conducted to examine the indirect effects. The results show that endurance exercise negatively predicts negative physical sensations (β = -0.48, p < 0.001), negative physical sensation positively predicts experiential avoidance (β = 0.36, p < 0.001) and exercise anxiety (β = 0.40, p < 0.001), and experiential avoidance positively predicts exercise anxiety (β = 0.26, p < 0.001). There were significant correlations among endurance exercise, negative physical sensation, experiential avoidance and exercise anxiety. Endurance exercise affects exercise anxiety through two ways: (1) endurance exercise → negative physical sensation → exercise anxiety; (2) endurance exercise → negative physical sensation → experiential avoidance → exercise anxiety. Negative physical sensations and experiential avoidance play mediating and chain-mediating roles between endurance exercise and exercise anxiety.

Temporal Sequence of Cognitive Function and ADLs and Mediation Effect of Apathy in Parkinson’s Disease: Cross-Lagged Analyses

ABSTRACT Objectives To explore the temporal sequence between cognitive function and activities of daily living (ADLs) in patients with Parkinson’s disease (PD) and investigate whether apathy mediates these effects. Methods We recruited 486 patients from the Parkinson’s Progression Marker Initiative. We constructed a cross-lagged panel model to explore the temporal sequence between cognitive function and ADLs and analyzed the longitudinal mediating effect of apathy on the relationship between cognitive function and ADLs. Results The slopes of ADLs and cognitive function were significant (p < .001), and lower levels of cognitive function indicated lower ADLs, suggesting that a decreased cognitive performance preceded ADLs decline. Cognitive function influenced apathy (negatively) (p < .001) and ADLs (p < .001). A significant indirect effect of cognitive function on ADLs through apathy was revealed by bias-corrected bootstrapping (β = 0.181, p < .001). Conclusions The rate of change in cognitive function was significantly correlated with that of ADLs, and a decreased cognitive performance preceded ADLs decline. Cognition was indirectly related to ADLs through apathy. Clinical implications The rate of change in cognitive function in patients with PD was correlated with that of ADLs, and a decreased cognitive performance preceded ADLs decline. Reducing apathy represents a promising approach to reducing the impact of cognitive decline on ADLs.

Exploring stigma, shame, and safety behaviours in social anxiety and paranoia amongst people diagnosed with schizophrenia.

Social anxiety and paranoia are connected by a shared suspicion framework. Based on cognitive-behavioural approaches, there is evidence for treating social anxiety and psychosis. However, mechanisms underlying the relationship between social anxiety and paranoia remain unclear. To investigate mediators between social anxiety and paranoia in schizophrenia such as negative social appraisals (i.e. stigma or shame; Hypothesis 1), and safety behaviours (i.e. anxious avoidance or in situ safety behaviours; Hypothesis 2). A cross-sectional study was conducted among Asian out-patients with schizophrenia (January-April 2020). Data on social anxiety, paranoia, depression, shame, stigma, anxious avoidance, and in situ behaviours were collected. Associations between social anxiety and paranoia were investigated using linear regressions. Mediation analysis via 10,000 bias-corrected bootstrap samples with 95% confidence intervals (CI) was used to test the indirect effects (ab) of mediators. Participants (n=113, 59.3% male) with a mean age of 44.2 years were recruited. A linear relationship between social anxiety and paranoia was found. In multiple mediation analyses (co-varying for depression), stigma and shame (Hypothesis 1) did not show any significant indirect effects with ab=.004 (95%CI=-.013, .031) and -.003 (-.023, .017), respectively, whereas in situ behaviours (Hypothesis 2) showed a significant effect with ab=.110 (.038, .201) through the social anxiety-paranoia relationship. Social anxiety and paranoia are positively correlated. In situ safety behaviours fully mediated the social anxiety and paranoia relationship. Targeted interventions focusing on safety behaviours could help reduce paranoia in psychosis. Symptom severity should be measured to help characterise the participants' characteristics.

Relationship between physical exercise and college students' social adaptation: the chain mediating role of self-esteem and peer attachment.

Physical exercise is an important way for college students to keep healthy, and social adaptation is an important part of college students' mental health. Therefore, this study explores strategies to enhance college students' social adaptation from the perspective of physical exercise, examining the correlation between physical exercise and college students' social adaptation, and delving into the roles of self-esteem and peer attachment in this relationship. A stratified cluster sampling method was used to collect data from 809 college students at Zhaoqing University (average age 19.88 ± 1.22, of whom 399 were male and 410 were female) using the physical exercise scale, college students' social adaptation scale, self-esteem scale, and peer attachment scale. For data analysis, Pearson correlation analysis, structural equation modeling, and bias-corrected percentile bootstrap methods were sequentially performed. (1) Physical exercise was positively correlated with college students' social adaptation (r = 0.58, p < 0.01), and the direct path between physical exercise and college students' social adaptation was significant (β = 0.28, p < 0.01, CI[0.22, 0.33]); (2) Physical exercise was positively correlated with self-esteem (β = 0.56, p < 0.01, CI[0.50, 0.62]) and peer attachment (β = 0.18, p < 0.01, CI[0.11, 0.26]); self-esteem was positively correlated with peer attachment (β = 0.36, p < 0.01, CI[0.28, 0.43]) and college students' social adaptation (β = 0.43, p < 0.01, CI[0.37, 0.49]); peer attachment was positively correlated with college students' social adaptation (β = 0.18, p < 0.01, CI[0.12, 0.23]); (3) The relationship between physical exercise and social adaptation was not only mediated independently by self-esteem and peer attachment, but also indirectly by the same two factors in a chain reaction. Physical exercise can not only directly predict college students' social adaptation, but also indirectly predict college students' social adaptation through the independent mediation and chain mediation of self-esteem and peer attachment. It reveals that we should combine more important physical exercise with mental health education for students.

The Role of Shame in Associations with PTSD and Depression Symptoms and Hazardous Drinking Among Bisexual Women Who Experienced Sexual Violence

ABSTRACT Bisexual (i.e. those with attraction to multiple genders) women experience disparities in sexual violence and mental health outcomes, including PTSD, depression, and hazardous drinking, compared to lesbian and heterosexual women. Unique stigma due to bisexual identity (antibisexual stigma), negative reactions to sexual violence (SV) disclosure (e.g. victim blaming), and prior child sexual abuse (CSA) may all contribute to shame. We tested whether shame explained the associations of antibisexual stigma, negative reactions to SV disclosure, and CSA severity with PTSD symptoms, depression, and hazardous drinking among young bisexual women. Participants who self-identified as bisexual women, between the ages of 18–35, residing in the US were recruited via Amazon’s Mechanical Turk (MTurk) and completed online questionnaires. Women who reported SV since age 18 that they disclosed to someone were included in the current study, yielding a sample of 156 bisexual women (Mage = 25.7; 98.1% cisgender, 86.5% White). Path analysis with bias-corrected bootstrapping was conducted. There were significant direct effects of negative reactions on hazardous drinking and CSA on PTSD, and direct effects of shame on PTSD and depression symptoms. Shame explained the associations of antibisexual stigma, negative reactions, and CSA with PTSD symptoms, depression symptoms, and hazardous drinking. Shame may explain why stigmatizing experiences related to bisexual identity, sexual violence, and CSA history relate to distress among bisexual women. Shame is an important treatment target among bisexual survivors of SV.

Examining the indirect effects of acculturation stress on insomnia through rumination and alcohol use among Latinx women and men.

Acculturation stress, a type of sociocultural stress, is positively associated with insomnia among Latinxs; however, the mechanisms of this association remain elusive. We tested the indirect effects of acculturation stress on insomnia through rumination and alcohol use, two coping strategies associated with insomnia, and explored these effects in gender-stratified models among Latinxs. We analyzed cross-sectional data from 187 Latinxs participating in the Latino Sleep and Health study in New York City in 2016-2019. We conducted bias-corrected boot-strap tests of mediation with case resampling (1,000 replications) in aggregate and gender-stratified models. Acculturation stress and insomnia were measured continuously using the Hispanic Stress Inventory and Insomnia Severity Index (ISI). Rumination was measured using a subscale of the Ruminative Response Scale. The Quantity-Frequency Index was used to measure alcohol use. Covariates included age, New York City poverty threshold, and perceived stress. Participants were Mage 37.43 (SD = 13.67). Most participants were women (64.17%). The average ISI was 6.65 (SD = 5.51). The indirect effect of acculturation stress on insomnia through rumination was statistically significant (b = 0.02, 95% BCa CI [0.01, 0.03]). Among women, this indirect effect had slightly larger coefficients than among men (b = 0.02, 95% BCa CI [0.01, 0.04]; b = 0.01, 95% BCa CI [0.004, 0.04]). Alcohol use was not a statistically significant mediator (b = -0.001, 95% BCa CI [-0.004, 0.0002]). These findings suggest that psychological interventions focused on reducing rumination in response to acculturation stress may promote healthy sleep among Latinxs, particularly among Latina women. Future studies should use longitudinal study designs to determine the causal relationships among these variables. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

The influence of self-efficacy on social adaptability among college students: The mediating role of psychological resilience

Against the backdrop of rapid social development, given the importance of good social adaptability for individuals' careers and daily lives, the purposed of this study is to explore the influence of self-efficacy of vocational college students on social adaptability. A questionnaire survey was conducted on 940 vocational college students in China using the Self-Efficacy Scale, Social Adaptability Scale, and Psychological Resilience Scale to obtain valid samples. SPSS and AMOS are used to further explore the explanatory and predictive relationships between variables. A mediation effect is proposed to establish a structural model, and the bias-corrected percentile Bootstrap method is used to conduct an empirical test on the constructed model. The research results show that the self-efficacy of vocational college students in China has a significant positive impact on social adaptability. Moreover, psychological resilience plays a mediating role in the influence of self-efficacy on social adaptability. Based on these results, schools can promote the improvement of students' social adaptability by cultivating their self-efficacy. Through targeted mental health education and training, students' self-efficacy and psychological resilience can be enhanced, thereby improving social adaptability and enabling them to better cope with academic pressure and life challenges and adapt to vocational and social lives.

Relationship between physical exercise, bullying, and being bullied among junior high school students: the multiple mediating effects of emotional management and interpersonal relationship distress

ObjectiveThis paper investigates the relationships between physical activity (PA), school bullying, emotion regulation self-efficacy (ERS), and interpersonal relationship distress (IRD) among junior high school students. It also examines the underlying mechanisms of school bullying to provide insights into reducing adolescent bullying and to lay the groundwork for preventing and controlling aggressive behaviors.MethodsA survey was conducted on 484 students (240 males, 12.18 ± 0.8 years) from 4 secondary schools using the Physical Activity Rating Scale (PARS), Emotional Management Self-Efficacy Scale (EMSS), Interpersonal Relationship Distress Scale (IRDS), and Campus Bullying Scale (CBS) to examine the effects among the variables. A stratified random sampling method was used to select the sample, and data were collected with a structured questionnaire. The data were analyzed using SPSS 24.0 and AMOS 24.0 statistical software. The analysis included Pearson correlation analysis, structural equation modeling, and bias-corrected percentile Bootstrap methods.Results(1) PA negatively predicts IRD, which in turn has an indirect effect on bullying (PA → IRD → Bullying), ES = -0.063. Additionally, EM and IRD act as mediators between PA and school bullying (PA → EM → IRD → Bullying), ES = 0.025. (2) PA negatively predicts IRD, which has an indirect effect on being bullied (PA → IRD → Being bullied), ES = -0.044. EM and IRD serve as chain mediators between PA and being bullied (PA → EM → IRD → Being bullied), ES = -0.071.ConclusionPA can positively predict bullying, but it can be mitigated through EM to reduce IRD, thereby decreasing the occurrence of campus bullying and being bullied.

The impact of online interaction and information technology accessibility on academic engagement among international undergraduate students in Chinese universities: The mediating effect of learning interest

Academic engagement was recognized as a crucial predictor to measure the effectiveness of online teaching of international students. Therefore, this study established a mediating model to explore the mechanism underlying of interaction and information technology accessibility on academic engagement of international students, as well as the impact of learning interest on these mechanisms with the context of online teaching. Using a stratified random sampling method, 1895 international students from 32 Chinese universities were selected. These international students had completed the academic engagement scale, interaction scale, information technology accessibility scale, and learning interest scale. The study variables were analyzed in sequence for reliability and validity, common method biases test, correlation analysis, structural equation model testing, and bias-corrected percentile Bootstrap testing. The results revealed that online interaction positively affected the academic engagement of international students in Chinese universities (β= 0.35, p < 0.001), and learning interest played a partial mediating role between online interaction and academic engagement (indirect effect = 0.10, 95 % Boot CI = [0.06, 0.13], p < 0.001). Information technology accessibility did not have a direct impact on academic engagement (β= 0.06, p > 0.05); but learning interest played a complete mediating role between information technology accessibility and academic engagement (indirect effect = 0.09, 95 % Boot CI = [0.05, 0.11], p < 0.001). The results of Bootstrap showed that the mediating effects within the model were significant. The findings of this study explored the potential mechanism underlying the online academic engagement of international students in Chinese universities, and provided empirical evidence for universities and educators to implement differentiated learning support, assist international students in adapting to online learning styles, and stimulate the endogenous motivation of students' learning.

Family involvement in mental healthcare practice: Perspectives of mental health nurses, patients, and caregivers.

Family engagement in care has been advocated to promote recovery for patients with mental health conditions. Attitudes of mental health nurses toward the importance of families influence the way they partner with families in mental healthcare. However, little is known about how mental health nurses engage with families and quality of family-centered care (FCC) perceived by patients and caregivers. The study aimed to examine the mediating effect of family nursing practice on the association between mental health nurses' attitudes toward integrating families into care and quality of FCC perceived by patients with schizophrenia and caregivers. A cross-sectional study was conducted. A convenience sample of 143 dyads of patients with schizophrenia and their caregivers and 109 mental health nurses were recruited from inpatient wards at two psychiatric hospitals in Taiwan. Demographic and clinical questionnaires, Families' Importance in Nursing Care-Nurses' Attitudes scale, Family Nursing Practice Scale, and Measure of Process of Care for Adults were used to collect data. Data were analyzed using descriptive statistics, independent-sample t-tests, one-way analysis of variance, Pearson correlation coefficients, paired-sample t-tests, and intraclass correlation coefficient (ICC). Mediation analyses were performed using Hayes' PROCESS macro in SPSS (Model 4) with bootstrapping. Mental health nurses exhibited supportive attitudes toward integrating families into care (Mean = 98.96) and greater perceptions of family nursing practice (Mean = 2.44). The concordances between patients and caregivers on perceived quality of family-centered care were significant (ICC = 0.63-0.77). Attitudes of mental health nurses toward integrating families into care had both the total and direct effects on all domains of quality of FCC perceived by patients and caregivers, respectively. The indirect effects of mental health nurses' attitudes toward integrating families into care on aspects of quality of FCC through family nursing practice were significant for patients (95% bias-corrected bootstrap CI of 0.015-0.053) and caregivers (95% bias-corrected bootstrap CI of 0.004-0.041). The magnitude of the indirect effects was medium to large for patients (ES = 0.209-0.257) and caregivers (ES = 0.148-0.221). Family nursing practice partially mediated the association between mental health nurses' attitudes toward integrating families into care and aspects of quality of FCC from perspectives of patients and caregivers. Interventions tailoring mental health nurses' practice skills and reciprocity with families have the potential to enhance supportive attitudes of mental health nurses toward working with families and further improve perceived quality of FCC in patient-caregiver dyads in mental healthcare practice.

How the perfectionistic climate of a sports team predicts the athletic performance of elite athletes: a case study of the CUBAL women's basketball team.

In competitive sports, understanding how the perfectionistic climate within teams influences the performance of elite female athletes can provide valuable insights for enhancing coaching practice and athletic achievement. Based on the cognitive appraisal theory of stress, this study constructs a dual-path model using stressors and coping strategies as mediators, referred to as the Perfectionistic Climate on Athletic Performance model (PCPM). The study explores the predictive role of the perfectionistic climate within sports teams on the athletic performance of elite female basketball players. The empirical study the relationships among the variables in the model using a sample of 125 core players from the top-level women's basketball teams in the 24th CUBAL24 tournament in 2022. A Structural Equation Modeling (SEM) analysis was conducted using AMOS 20.0, primarily employing the bias-corrected Bootstrap method to test the dual-path model. The findings reveal double-edged paths towards a perfectionistic climate on athletic performance. In the positive pathway, a perfectionistic climate can positively predict athletic performance through challenge-related sources of stress and positive coping strategies. In the negative pathway, a perfectionistic climate can negatively predict athletic performance through threat-related sources of stress and negative coping strategies. Coaches need to pay attention to athletes' cognitive evaluations of the perfectionistic climate as a source of pressure. By setting challenging goals, coaches can guide athletes to view the perfectionistic climate of the sports team as a source of challenging pressure, thus unleashing their potential. Coaches should actively guide athletes in coping with the pressure brought about by the perfectionistic climate, enhancing their ability to handle stress. This will enable athletes to better adapt to the team's perfectionistic climate and further improve individual and team athletic performance.

Supervisor bottom-line mentality and subordinate knowledge hiding: role of team climate

PurposeDrawing on social information processing theory, this study constructs a multilevel moderated mediation model. This model seeks to delve into the intricate and previously overlooked interplay between supervisor bottom-line mentality (BLM) and knowledge hiding. Within this context, we introduce self-interest as a mediating factor and incorporate performance climate as a team-level moderating variable.Design/methodology/approachThe time-lagged data involve 336 employees nested in 42 teams from 23 automobile sales companies in five regions of China. The analysis was meticulously executed using Hierarchical Linear Modeling, complemented by bias-corrected bootstrapping techniques.FindingsThe findings reveal that self-interest acts as a full mediator in the positive link between supervisor BLM and knowledge hiding. Furthermore, the performance climate plays a moderating role in both the relationship between supervisor BLM and self-interest, and the entire mediation process. Notably, these relationships are intensified in environments with a high performance climate compared to those with a low one.Originality/valueThis research stands as one of the pioneering efforts to integrate supervisor BLM into the discourse on knowledge hiding, elucidating the underlying psychological mechanisms and delineating the boundary conditions that shape the “supervisor BLM–knowledge hiding” relationship. Further, our insights provide organizations with critical guidance on strategies to curtail knowledge hiding among their employees.

Biological maturation, fat mass and cardiorespiratory fitness in prepubescent girls: A mediation analysis.

The association between indicators of maturation and measures of physical fitness are not well correlated and vary according to chronological age, sex, body size, and motor characteristics. It is known that chronological age, maturation, and fat mass are significant predictors of cardiorespiratory fitness in girls, however, the contributions of fat mass to the relationship between maturation and endurance performance are still unclear. The current study aimed to examine whether the association between somatic maturation and running performance in the 20-m shuttle-run in girls is mediated by estimated fat mass. The sample comprised 67 girls, aged 8.00-8.99 years. Stature, body mass, and skinfolds were measured. Estimates of body composition and predicted mature stature (PMS) were then calculated. Current stature was expressed as a percentage of PMS and somatic maturation was given by z-scores of the percentage of PMS. Mediation analysis was performed using the bias-corrected bootstrap approach with 5000 resamples in order to obtain estimates of total, direct, and indirect effects of z-scores of the percentage of PMS on 20-m shuttle-run performance mediated by fat mass. The results show that fat mass mediated the negative effect of biological maturation on 20-m shuttle-run performance in the observed sample of prepubescent girls (Indirect effect: β = -0.177, 95%CI: -0.291 to -0.059). Although the participants were prepubescent girls, poorer aerobic running performance appeared to be partly due to increased levels of fat mass.

Bias-Correction Methods for the Unit Exponential Distribution and Applications

The bias of the maximum likelihood estimator can cause a considerable estimation error if the sample size is small. To reduce the bias of the maximum likelihood estimator under the small sample situation, the maximum likelihood and parametric bootstrap bias-correction methods are proposed in this study to obtain more reliable maximum likelihood estimators of the unit exponential distribution parameters. The procedure to implement the bias-corrected maximum likelihood estimation method is derived analytically, and the steps to obtain the bias-corrected bootstrap estimators are presented. The simulation results show that the proposed maximum likelihood bootstrap bias-correction method can significantly reduce the bias and mean squared error of the maximum likelihood estimators for most of the parameter combinations in the simulation study. A soil moisture data set and a numerical example are used for illustration.