Bias-corrected Percentile Bootstrap Research Articles

Evaluation of the Effect of Parental Participation on Chinese Adolescent Behavioral Development Through the Mediating Effect of Peers: A Moderated Mediation Model.

With the rapid changes in the social environment, adolescents are facing increasing academic pressure and challenges to their physical and mental development in the socialization process. The purpose of this study was to investigate the influence mechanisms of parental participation on adolescent behavioral development (learning persistence, expressive language ability and knowledge absorption ability), revealing the mediation role of adolescent positive and negative peer interactions between parental participation and behavioral development, and whether differences in parents and children's educational expectations moderate this process. This study was measured using the Parental Participation Questionnaire, Peer Interaction Questionnaire, Behavioral Development Scale, and Educational Expectancy Gap from the China Education Panel Survey. A total of 7730 seventh-grade students and their parents were invited to participate, to establish a moderated mediation model, and the significance of the mediation effect was tested using the bias-corrected percentile Bootstrap method. (1) High frequent parental participation has a significant positive effect on adolescent behavioral development, including behavioral participation, emotional participation, and educational participation all exerting varying degrees of positive influence, as well as positively influencing adolescents' peer interactions. (2) Positive and negative peer interactions play the mediation role of 12.3% and 2.5% respectively in the process of parental participation affecting adolescent behavioral development. (3) Comparing "educational expectation gap - equal", the "educational expectation gap - high" negatively moderates the effect of parental participation on adolescent behavioral development and positive peer interaction (inhibitory effect), the "educational expectation gap - low" positively moderates the effect of parental participation on negative peer interaction (facilitation effect), which meant that the "educational expectation gap - equal" between parents and children is a more desirable state. These findings provide empirical support and effective operational suggestions to further promote positive adolescent behavioral development. Particularly for developing countries, it is recognized that positive parental participation and peer interaction, as well as equal educational expectation of parents and children, are protective factors for adolescent development.

The association between physical exercise behavior and psychological resilience of teenagers: an examination of the chain mediating effect

The health of young people is crucial for the future and development of a nation. It is the collective responsibility and imperative mission of society to ensure the holistic well-being, both physically and mentally, of young individuals. Therefore, it is essential to thoroughly comprehend the factors that influence their health in order to expedite the exploration of effective solutions. The objective of this study is to comprehend the mechanisms that underlie the correlation between physical exercise behavior and psychological resilience among teenagers, while also examining the mediating role played by social sensitivity and need to belong. So put forward the hypothesis: (1) physical exercise behavior can positively predict the psychological resilience. (2) Social sensitivity and need to belong plays a mediating role between physical exercise behavior and psychological resilience. (3) Social sensitivity and need to belong plays a chain mediating role between physical exercise behavior and psychological resilience. Using the cluster sampling method, a total of 1106 students (with an average age of 15.7 and a standard deviation of 0.598) who met the requirements were surveyed from Shandong Province in China. Standard scales were utilized to assess Physical Exercise Behavior, Psychological Resilience, Social Sensitivity, and Need to Belong. For data analysis, Pearson's correlation analysis and bias-corrected percentile Bootstrap method were sequentially conducted. (1) The present study did not find any significant methodological bias, and the observed correlations between physical exercise behavior, psychological resilience, social sensitivity, and need to belong were all statistically significant; (2) Based on the self-determination theory, this study elucidates the relationship between physical exercise behavior and psychological resilience among teenagers. The findings indicate that physical exercise behavior positively predicts the need to belong and psychological resilience, while negatively predicting social sensitivity. Similarly, social sensitivity negatively predicts the need to belong and psychological resilience. Moreover, the need to belong directly and positively predicts psychological resilience. Importantly, all hypotheses proposed in this paper were empirically supported. (3) The indirect effect of the path mediated by social sensitivity is 0.009, while the indirect effect of the path mediated by need to belong is 0.033. Additionally, the combined indirect effect of both social sensitivity and need to belong as mediating variables is 0.014. (4) The cumulative sum of all these indirect effects amounts to 0.056. Based on the self-determination theory, we propose a chain mediation model, specially, physical exercise behavior can significantly positively predict psychological resilience, among which, social sensitivity and need to belong play a significant mediating role between Physical exercise behavior and psychological resilience. In addition, the adoption of good physical exercise behavior can enhance the psychological resilience of adolescents by diminishing social sensitivity and augmenting the need to belong.

The relationship between exercise commitment and college students' exercise adherence: The chained mediating role of exercise atmosphere and exercise self-efficacy

ObjectiveThis study aims to explore the mechanisms underlying exercise commitment, exercise atmosphere, exercise self-efficacy, and exercise adherence among college students, as well as the impact of gender differences on these mechanisms. MethodsUsing a stratified cluster sampling method, 984 college students (aged 19.74 ± 1.25 years) from six universities in Anhui, Shandong, and Shaanxi provinces were randomly selected, with 403 male students and 581 female students. They had completed the Exercise Commitment Scale (ECC), Physical Exercise Atmosphere Scale (PEAS), Exercise Self-Efficacy Scale (ESES), and Exercise Adherence Scale (EPS). The study variables were analyzed in sequence for reliability and validity, correlation analysis, regression analysis, structural equation model testing, and bias-corrected percentile Bootstrap testing using SPSS 23.0 software and Hayes' (2013) Process plug-in. ResultsExercise commitment significantly positively predicted exercise adherence (β = 0.796, p < 0.01), exercise commitment significantly positively predicted exercise environment and exercise self-efficacy (β = 0.645, p < 0.01, β = 0.356, p < 0.01), exercise environment significantly positively predicted exercise self-efficacy and exercise adherence (β = 0.344, p < 0.01, β = 0.144, p < 0.01), and exercise self-efficacy significantly positively predicted exercise adherence (β = 0.934, p < 0.01). The mediating role of exercise environment in the relationship between exercise commitment and exercise adherence does not exist in male college students, while it exists in female college students. ConclusionsExercise atmosphere and exercise self-efficacy play a mediating role between exercise commitment and exercise adherence, with a total mediating effect value of 0.796. This study indicates that exercise commitment not only directly predicts exercise adherence, but also indirectly predicts exercise adherence through the chained mediating effects of exercise atmosphere and exercise self-efficacy. The above-mentioned mediating effect exists in female college students, while some mediating effects do not exist in male college students, thus gender has a significant impact on this mediating effect.

Mediating role of physical activity in the relationship between psychological distress and intimate relationships among stroke patients.

Stroke patients often experience psychological distress, which can impact their intimate relationships with spouses, subsequently influencing their treatment and recovery. Physical activity is considered a key rehabilitation method for stroke patients. This paper aims to analyze whether psychological distress affects intimate relationship between spouses through physical activity. To explore the mediating effect of physical activity between psychological distress and intimate relationship in stroke patients. A total of 256 stroke patients who underwent treatment at the First People's Hospital of Shangqiu between July 2021 and July 2022 were enrolled in this study. The participants completed questionnaires, including the Kessler Psychological Distress Scale (K10), the Quality of Relationship Index (QRI), International Physical Activity Questionnaire, and a general information questionnaire. Data analysis were performed using SPSS 23.0. The Harman test was employed to detect common method deviations, and Spearman correlation was used for correlation analysis. The mediating effect was assessed using Process 3.4.1, with significance testing of the regression coefficients conducted using the bias-corrected percentile Bootstrap method (5000 iterations, 95% confidence interval). Statistical significance was set at P < 0.05. The results showed that patients scored an average of 21.61 ± 6.44 points on the K10, 32.40 ± 6.19 points on the QRI; the median physical activity level according to the International Physical Activity Questionnaire was 1861 (566, 2846) MET·min/w. The level of physical activity (the physical activity intensity of the patients reflected by the International Physical Activity Questionnaire-Long Form scale) negatively correlated with psychological distress and intimacy (P < 0.05), and positively correlated with each other (P < 0.05), with the correlation stronger at lower physical activity levels compared to higher ones. The mediating effect of physical activity between psychological distress and intimate relationship was calculated to be 40.23%. Bootstrap analysis further validated the results. The mediating effect of psychological distress on intimate relationships through physical activity level was -0.284, with a confidence interval of -0.409 to -0.163, excluding 0, confirming a significant mediating effect of psychological distress on intimate relationships. Physical activity significantly affects relationship between psychological distress and intimate relationships among stroke patients. Addressing the role of physical activity may have implications for improving patient outcomes and rehabilitation strategies.

Sleep Hygiene, Mediating the Association Between Circadian Typology and Psychological Distress: An Association Elicited by Mediation Analysis Model Among Young Sudanese Adults, 2022-2023

BACKGROUND: Circadian rhythms are regulated by genetic and environmental components. The association of intrinsic and extrinsic factor modulates physiological and individual sleep schedules sleep hygiene and even different chronotype. Evidence suggests evening-type individuals have a higher risk of reporting psychological distress than morning-type individuals. However, less is known regarding the underlying processes that might mediate this association among Sudanese young adults. This study aimed at assessing the mediating role of sleep hygiene on the relationship between circadian typology and psychological distress among young Sudanese adults. METHODS: This is a cross sectional study. Conducted among medical students, graduates and medical interns of Al-Neelain University. Between April and August 2022. Morningness–Eveningness 19 items Questionnaire (MEQ) was used to assess chronotype preference. Kessler10-item Questionnaire was used to assess Psychological Distress, and sleep hygiene index (SHI) was used to screen Sleep hygiene behaviors. Hayes PROCESS macro (model 4) was used to perform the mediation analysis. RESULTS: Among 303 medical students who complete the study questionnaire. Mean of age for study participants was (22.71±2.49). Sleep hygiene index mean score was (29.35±5.46) indicating poor sleep hygiene behaviors. Most of the population were Neutral in their circadian typology preference (58.1%). (89.8%) of our population had psychological distress, Chronotype correlated with severe psychological distress and poor sleep hygiene behaviors (r=-0.141, P&lt;0.05) (r=-0.292, P&lt;0.001) respectively. Poor sleep hygiene behaviors also correlated with severe psychological distress (r=0.466, P&lt;0.001). Individuals who were severely psychologically distressed mostly had higher sleep hygiene mean scores than normal individuals (29.35±5.46), (21.61±6.42) (p&lt;0.001). Sleep hygiene index scores were lower for Morning circadian typologies [definite Morning 22.50± (7.00), moderate morning 24.89± (5.63)] compared to evening typologies [definite evening 32.25± (4.43), moderate evening 29.00± (6.09)]. Which indicated good sleep hygiene behaviors for Morning chronotype groups. Figure 1.0 illustrates the distribution of mean sleep hygiene index scores across circadian preference groups. Multiple regression analysis results showed that there was no significant direct effect of chronotype on psychological distress β=-.0096, SE= .0496, t=-.1937, P=.8466, CI [-.1073-.0881]. We also found a significant indirect effect of sleep chronotype on psychological Distress (β=-0.113, SE=0.0265, CI [-.1698 - -.0649]. According to bias-corrected percentile bootstrap method the total effect was negatively significant, (β=-0.123, SE=0.0534, t=-2.30, p&lt;0.05, CI [-0.2280 - -0.0178], indicating a full complimentary mediation between evening chronotype and impaired psychological wellbeing through sleep hygiene behaviors. CONCLUSION: Sleep hygiene was found to mediate the correlation between eveningness and impaired psychological wellbeing, Improvement of Sleep hygiene behaviors is advised to enhance morning circadian typology as to prevent and reduce psychological distress. Interventions to enhance morning circadian typology should be prioritized to medical students, graduates and medical interns who are prone to eveningness to minimize the risk for psychological distress.

Direct and indirect effects of self-directed learning on creativity in healthcare undergraduates: a chain mediation model of openness to challenge and diversity and creative self-efficacy.

Creativity and self-directed learning (SDL) are prominent for undergraduate healthcare students to provide quality patient care in an increasingly complex healthcare environment. Research suggested that SDL is linked with creativity, yet the mechanism underlying the relationship between SDL and creativity has not been fully understood. This study examined the relationship between SDL and creativity and constructed a chain mediation model to identify the mediating effect of openness to diversity and challenge (ODC) and creative self-efficacy (CSE). Through convenience sampling, 575 healthcare undergraduates (average age = 19.28 years, SD = 1.124 years) were surveyed from Shandong Province in China. Creativity, SDL, ODC, and CSE were assessed using corresponding scales. Pearson's correlation analysis, hierarchical multiple linear regression analysis, a serial multiple mediation analysis, and bias-corrected percentile Bootstrap method were conducted by using structural equation modeling by AMOS 26.0. The direct path between SDL and creativity was significant. SDL can positively predict both ODC and CSE, and the latter two variables can significantly and positively predict creativity. ODC and CSE played a significant partial mediating role in the relationship between SDL and creativity. The mediating effect consists of three indirect effects: SDL → ODC → creativity (the mediating effect value is 0.193, p = 0.012), SDL → CSE → creativity (the mediating effect value is 0.096，p = 0.001), and SDL → ODC → CSE → creativity (the mediating effect value is 0.035, p = 0.031). SDL can positively predict creativity. ODC and CSE had significant mediating effects between SDL and creativity, including single partial mediating effects of ODC and CSE and chain mediating effects of ODC-CSE.

The Effect of Academic Adaptability on Learning Burnout Among College Students: The Mediating Effect of Self-Esteem and the Moderating Effect of Self-Efficacy.

With the popularization of higher education, the problems of academic adaptability and learning burnout among college students have become increasingly prominent. The purpose of this study was to investigate the relationship between academic adaptability, learning burnout, self-esteem and self-efficacy of college students and their underlying mechanisms. The study was conducted on 2110 college students using the College Student Learning Adjustment Scale, the Learning Burnout Undergraduates Scale, the Self-Esteem Scale, and the Self-Efficacy Scale to establish a mediating model of adjustment. SPSS 26.0 was used for descriptive statistics and Pearson correlation analysis. Model 4 and Model 14 in the process plug-in prepared by Hayes (2017) were used for mediating effects analysis and moderating mediator analysis respectively, and the significance of the mediating effects was tested using the bias-corrected percentile Bootstrap method. (1) academic adaptability significantly and positively predicted self-esteem; (2) self-esteem significantly and negatively predicted learning burnout; (3) academic adaptability significantly and negatively predicted learning burnout; (4) self-esteem partially mediated the effect of academic adaptability on learning burnout; and (5) self-efficacy moderated the latter half of the mediation process of academic adaptability-self-esteem-learning burnout. These findings are useful for college educators and related researchers to better understand the mechanisms underlying the relationship between academic adaptability and learning burnout, thus providing practical and effective operational suggestions on the prevention and intervention of learning burnout in college students.

Subjective Functional Difficulties and Subjective Cognitive Decline in Older-Age Adults: Moderation by Age Cohorts and Mediation by Mentally Unhealthy Days.

Background and Objectives: Despite the expected positive association between subjective functional difficulties (SFD) and subjective cognitive decline (SCD), their mediation by mentally unhealthy days (MUDs) is under-studied. Moreover, few SCD studies have examined affective reactivity to functional difficulties by age cohort. This study examined the mediation effect of MUDs on the association between SFD and SCD by age cohorts' moderation among older adults. Methods: Using a cross-sectional design approach, we used the 2019 BRFSS dataset on 13,377 older adults aged 65 to ≥80 (44% males and 56% females). Results: The bias-corrected percentile bootstrap with 5000 samplings revealed that MUDs partially mediate the relationship between SFD and SCD (14.12% mediation effect), controlling depressive symptoms, education, income levels, and race. Age cohorts moderated the relationship between SFD and SCD and between SFD and SCD but not between MUDs and SCD. The predictive effects of the path from SFD to MUDs and from MUDs to SCD were stronger in the younger-old (65-69) than the middle-old (70-79) and oldest-old (≥80) age cohorts. Worse SCD was associated with being Asian, in female older adults, and in those with lower education and income levels. Conclusions: These findings extend the chronic stress theory predictions that accentuated emotional vulnerability to subjective functional difficulties may magnify SCD, particularly in the younger-old age group. By implication, preventive SCD interventions should seek to support younger-old adults in their activities of daily life for successful aging transitioning into older-age cohorts.

The relationship between physical exercise and subjective well-being among Chinese junior high school students: A chain mediating model.

This study aims to help understand the mechanism behind the relationship between physical exercise and the subjective well-being among Chinese junior high school students, and it is of great significance for the intervention measures to improve the subjective well-being of junior high school students. Using stratified cluster sampling method, 1,510 junior high school students (727 males and 783 females) were measured by physical exercise rating scale, perceived social support scale, physical exercise self-efficacy scale, and subjective well-being scale. For data analysis, Pearson's correlation analysis, structural equation model test, and bias-corrected percentile Bootstrap method were carried out in turn. Common method biases can be accepted in this study. (1) There is a positive correlation between physical exercise and subjective well-being, and physical exercise has a significant predictive effect on subjective well-being(β = 0.367 t = 9.415 p < 0.01); (2) Perceived social support partially mediated the relationship between physical exercise and subjective well-being (β = 0.08, t = 3.083, p < 0.01), and its effect ratio is 78.047%; (3) Physical exercise self-efficacy plays a partial mediating role between physical exercise and subjective well-being(β = 0.181, t = 5.132, p < 0.01), accounting for 50.632%; (4) The chain mediating effect of perceived social support and physical exercise self-efficacy was significant (the mediating effect value was 0.028), and the effect amount was 7.629%. (1) Physical exercise can significantly positively predict the subjective well-being of junior high school students; (2) Physical exercise can also indirectly affect the subjective well-being of junior high school students through the mediating effect of perceived social support and physical exercise self-efficacy. The intermediary effect includes three paths, namely, the individual intermediary effect of perceived social support and physical exercise self-efficacy and the chain intermediary effect of perceived social support physical exercise self-efficacy.

The relationship between achievement motivation and college students' general self-efficacy: A moderated mediation model.

This study focused on the relationship between achievement motivation and college students' general self-efficacy, and aimed to explore the mechanism of action between achievement motivation and general self-efficacy. Through convenience sampling, 1,076 college students were investigated from Anhui Province in China. Achievement motivation, general self-efficacy, perceived social support, and sports participation were evaluated using standard scales. For data analysis, Pearson's correlation analysis, structural equation model test, and bias-corrected percentile Bootstrap method were carried out. Common method biases can be accepted in this study. (1) Achievement motivation can directly affect general self-efficacy and make a positive prediction; (2) Perceived social support plays a mediating role between achievement motivation and general self-efficacy, that is, achievement motivation can indirectly affect general self-efficacy through perceived social support; (3) Sports participation plays a moderating role in the first half of the mediating path of "achievement motivation → perceived social support → general self-efficacy." The interaction between achievement motivation and sports participation affects perceived social support, and then indirectly affects general self-efficacy. In this moderated mediation model, The predictive effect of achievement motivation on perceived social support is significantly different among individuals with different levels of sports participation. Perceived social support plays a part of mediating role between achievement motivation and college students' general self-efficacy, which is moderated by sports participation.

Subjective Aging Difficulties among Older Adults with Subjective Cognitive Decline.

In older adults, subjective cognitive decline (SCD) may progress to an early stage of dementia. Yet, its association with subjective daily functional difficulties in aging is less well studied by experiences of mentally unhealthy days (MUDs). Employing a cross-sectional design approach, we analyzed the Behavioral Risk Factor Surveillance System dataset on 7429 older adults with SCD (aged 65 to >80, 45% males, 55% females) to explore SCD in instrumental daily activities of living (SCD-IADLs) and healthcare access mediation by MUDs and moderated mediation by age cohort, controlling gender and education. The bias-corrected percentile bootstrap with 5000 samplings revealed that MUDs partially mediate the relationship between SCD-IADLs and healthcare access, with a 28.2% mediating effect. Age cohort moderated the relationship between healthcare access and MUDs, MUDs and SCD-IADLs. Specifically, the predictive effects from healthcare access to MUDs and MUDs to SCD-IADLs were more profound in the 70-74 age cohort.

Relationship of neurocognitive ability, perspective taking, and psychoticism with hostile attribution bias in non-clinical participants: Theory of mind as a mediator.

ObjectivesHostile attribution bias is reportedly common from non-clinical population to those with serious mental illness, such as schizophrenia, and is known to be closely related to theory of mind (ToM). This study aimed to investigate whether ToM skills mediate the relationship among neurocognitive ability, personality traits, and attribution bias.MethodsA total of 198 (101 females) non-clinical youths were recruited. To assess their neurocognitive ability and ToM skills, the participants were asked to complete Raven’s Standard Progressive Matrices (SPM) and the Korean version of the Reading the Mind in Eyes Test (K-RMET). To determine their personality traits, the Eysenck Personality Questionnaire (psychoticism) and interpersonal reactivity index (perspective taking) were used. To evaluate hostile attribution bias, the Ambiguous Intentions Hostility Questionnaire was administered. Path analysis and bias-corrected percentile bootstrap methods were used to estimate model fit and the parameters of the mediating effects.ResultsBased on model comparison, the best model characterized (1) two direct pathways from psychoticism and the K-RMET to hostility attribution bias and (2) three indirect pathways, wherein SPM, perspective taking, and psychoticism influenced hostile attribution bias through K-RMET. The final model fit indices were good [x2/df = 1.126; comparative fit index = 0.996; root mean square error of approximation = 0.026; standard root mean square residual = 0.026 and Akaike information criterion = 28.251] and the K-RMET fully mediated the association between SPM, perspective taking, psychoticism, and hostile attribution bias.ConclusionThe main findings suggested that ToM skills, such as the RMET, play an important role in explaining the relationship among neurocognitive ability, personality traits, and hostile attribution bias. ToM skills and a remediation strategy may need to be developed to balance the enhanced hostility bias that underlies the paranoia.

The Mediating Effects of Mindfulness on Perceived Stress From HIV Stigma in People Living With HIV in Myanmar: A Cross-sectional Study.

HIV is a highly stigmatized and stressful condition for people with HIV (PWH). As a country heavily influenced by religion, especially Buddhism, we explore how the perceived stress from HIV stigma interacts with the mediator of mindfulness on PWH in Myanmar. From January to July 2020, a sample of 248 eligible PWH was recruited by quasi-random sampling methods from a private Facebook group in Myanmar. Data on demographics, HIV stigma, mindfulness, and perceived stress were collected. The bias-corrected percentile bootstrap method was used to test multiple mediation analyses. The path from perceived HIV stigma to perceived stress (direct effect β = 0.16) and the mediating effect of mindfulness on that stress were significant (indirect effect accounts for 45.15% of total effect). The findings indicate that interventions enhancing mindfulness-based practice should be considered to reduce HIV stigma and, therefore, lower perceived stress among PWH in Myanmar.

The Relationship Between Empowering Motivational Climate in Physical Education and Social Adaptation of Senior High School Students: An Analysis of Chain Mediating Effect.

This study aims to contribute to understanding the mechanisms underlying the association between empowering motivational climate in physical education and social adaptation among senior high school students, and has important implications for interventions that aim at improving social adaptation among senior high school students. Through the quota sampling, 1,526 students (average age = 17 years, SD = 0.714 years) who came from Anhui Province and met the requirements participated and completed the Empowering Motivational Climate Questionnaire in Physical Education (EMCQ-PE), the Physical Education Engagement Scale (PEES-S), the Emotional Intelligence Scale (EIS) (Chinese version), and the Adolescent Social Adaptation Assessment Questionnaire (ASAAQ). For data analysis, Pearson’s correlation analysis, structural equation model test, and bias-corrected percentile Bootstrap method were carried out in turn. The results showed that empowering motivational climate in physical education positively predicted social adaptation (β = 0.282, p < 0.01), empowering motivational climate in physical education positively predicted physical education engagement and emotional intelligence (β = 0.169, p < 0.01; β = 0.690, p < 0.01), physical education engagement positively predicted emotional intelligence and social adaptation (β = 0.591, p < 0.01; β = 0.058, p < 0.05), and emotional intelligence positively predicted social adaptation (β = 0.365, p < 0.01). Physical education engagement and emotional intelligence played a mediating role in empowering motivational climate in physical education and social adaptation, with a total mediating effect value of 0.251. This study shows that empowering motivational climate in physical education not only directly predicts social adaptation but also indirectly predicts social adaptation through the chain mediating effect of physical education engagement and emotional intelligence.

Constructing Bootstrap Confidence Intervals of Process Capability Indices for a Three Parameter Weibull Distribution

Statistical Quality Control (SQC) technique is used in investigating the quality improvement features in a manufacturing process. One of the important tools in SQC is the process capability indices (PCIs), for measuring and comparing the characteristics of a productionprocess to engineering specifications. This article evaluates the performance of the PCIs for a three parameter Weibull distribution which is commonly employed in almost all fields of studies, such as reliability, stability and breakage data. In this article, three different techniques of constructing bootstrap confidence intervals (BCIs) of PCIs are investigated using simulations for the three parameterWeibull distribution. The three different techniques considered are percentile bootstrap, bias-corrected percentile bootstrap and normal bootstrap techniques. By using simulation, the authors investigate the average widths of the BCI of each of the three different techniques. It is found that the average widths of the bias-corrected percentile bootstrap technique are shorter than that of the other two techniques.

Job Burnout Is Associated With Prehospital Decision Delay: An Internet-Based Survey in China.

BackgroundPrehospital delay is associated with non-modifiable factors such as age, residential region, and disease severity. However, the impact of psychosocial factors especially for job burnout on prehospital decision delay is still little understood.MethodThis internet-based survey was conducted between 14 February 2021 and 5 March 2021 in China through the Wechat platform and web page. Self-designed questionnaires about the expected and actual length of prehospital decision time and the Chinese version of Maslach Burnout Inventory-General Survey, Type D Personality Scale-14, and Social Support Rating Scale were applied. A total of 1,039 general participants with a history of perceptible but tolerable body discomfort were included.ResultsThe top six reasons for prehospital decision delay were: (1) endure until self-healing (50.7%), (2) too busy to ask for leave (40.3%), (3) process for seeing a doctor too complicated (35.8%), (4) too tired after work (26.2%), (5) worry about the expenditure (16.6%), and (6) fear of being identified as with serious problem (14.5%). The univariate analyses revealed that older age (p = 0.001), type D personality (p = 0.025), job burnout (p = 0.055), and worrying about expenditure (p = 0.004) were associated with prolonged prehospital decision time, while engaged in medical-related job (p = 0.028) and with more social support (p = 0.066) would shorten the delay. The multivariate analysis using logistic regression model with forward selecting method showed that age [per 10 years, odds ratio (OR) 1.19 (1.09–1.31), p < 0.001], job burnout [per 10 points in Maslach Burnout Inventory-General Survey (MBI-GS), OR 1.17 (1.04–1.31), p = 0.007], and worrying about expenditure [OR 1.75 (1.25–2.47), p = 0.001] were the three determinants for prehospital decision delay (>7 days). Mediating effects were analyzed by using bias-corrected percentile bootstrap methods (N = 10,000). Social support was found partially mediated the relationship between the determinants and prehospital decision time. The partial mediating effect of social support accounted for 24.0% of the total effect for job burnout and 11.6% for worrying about expenditure.ConclusionPsychosocial factors have a non-negligible impact on prehospital decision delay. The crucial part of prehospital decision delay may be the lack of motivation inside. Job burnout and lack of social support, as two commonly seen features in the modern world, should be given enough consideration in disease prevention and treatment.

Relationship Strength Affects Firms' Technological Innovation Performance: Study of the Conditional Process

In this paper, we empirically analyze the influence mechanism of innovation performance of relationship strength firms through the panel data of patents and standards of 15 firms in China's OLED industry from 2014 to 2020, using hierarchical regression and bias-corrected percentile Bootstrap method for testing. The findings show that: relationship strength positively affects firm innovation performance; relationship strength positively affects firm innovation performance through the mediating effect of network location; the effect of network location on innovation performance is moderated by technological diversification; the mediating effect of network location is also moderated by technological diversification, and the higher the degree of technological diversification, the stronger the mediating effect of network location. The findings enrich the research on innovation performance and R&amp;D networks, and provide theoretical guidance for Chinese firms to build effective R&amp;D networks and technology diversification strategies.

Analysis for partially accelerated dependent competing risks model with masked data based on copula function

In the reliability analysis of competing risks model, it is usually assumed that the components are independent and failure causes are observable. However, this assumption may be unrealistic in some applications. In this article, based on the tampered failure rate (TFR) model, we introduce a constant-stress partially accelerated life test (PALT) model of dependent competing risks with masked data. The dependent structure is described by Gumbel copula function and the life distribution of components is described by the Weibull distribution. The maximum likelihood method is used to estimate the dependent parameter and unknown parameters of the model, so as to derive the estimation of the reliability function (RF). Confidence intervals (CIs) of the model parameters are also obtained via asymptotic normality theory and bias-corrected percentile bootstrap (Boot-BCP) technique. Simulation results show that the dependent model with masked data improves the estimation accuracy of system reliability compared with the independent model. Finally, a real data analysis indicates that the statistical inference model and methods have good performance.

The Relationship Between Empowering Motivational Climate in Physical Education and Social Responsibility of High School Students: Chain Mediating Effect Test.

Objective: This study aimed to contribute to understanding the mechanisms underlying the association between empowering motivational climate in physical education and social responsibility among high school students, and have important implications for interventions aimed at improving social responsibility among high school students.Methods: Through the quota sampling, 802 students (average age = 17 years, SD = 0.97 years) that complied with the requirements were surveyed from Anhui Province in China. Empowering motivational climate in physical education, social responsibility, interpersonal disturbance, and general self-efficacy were assessed using standard scales. For data analysis, Pearson’s correlation analysis, structural equation model test, and bias-corrected percentile Bootstrap method were carried out in turn.Results: (1) Common method biases can be accepted in this study, and the correlation among empowering motivational climate in physical education, social responsibility, interpersonal disturbance, and general self-efficacy are all significant; (2)Empowering motivational climate in physical education, interpersonal disturbance and general self-efficacy can all predict social responsibility significantly; (3) Structural equation modeling indicates good fit: χ2/df = 2.86, RMESA = 0.068, CFI = 0.92, NNFI = 0.91, NFI = 0.90, GFI = 0.93. It indicates that interpersonal disturbance and general self-efficacy can play mediating roles between empowering motivational climate in physical education and social responsibility, respectively. After that, interpersonal disturbance as well as general self-efficacy in turn plays the chain mediating effect in the relationship between empowering motivational climate in physical education and social responsibility. The effect size of the mediating effect of interpersonal disturbance and general self-efficacy in the relationship between empowering motivational climate in physical education and social responsibility is 0.048 and 0.148, respectively, and the effect size of the chain mediating effect is 0.031.Conclusion: Empowering motivational climate in physical education not only has a direct effect on social responsibility among high school students, but also influences social responsibility by the chain mediating effect of interpersonal disturbance and general self-efficacy.

Stress-Strength Reliability for Exponentiated Inverted Weibull Distribution with Application on Breaking of Jute Fiber and Carbon Fibers.

For the first time and by using an entire sample, we discussed the estimation of the unknown parameters θ1, θ2, and β and the system of stress-strength reliability R=P(Y < X) for exponentiated inverted Weibull (EIW) distributions with an equivalent scale parameter supported eight methods. We will use maximum likelihood method, maximum product of spacing estimation (MPSE), minimum spacing absolute-log distance estimation (MSALDE), least square estimation (LSE), weighted least square estimation (WLSE), method of Cramér-von Mises estimation (CME), and Anderson-Darling estimation (ADE) when X and Y are two independent a scaled exponentiated inverted Weibull (EIW) distribution. Percentile bootstrap and bias-corrected percentile bootstrap confidence intervals are introduced. To pick the better method of estimation, we used the Monte Carlo simulation study for comparing the efficiency of the various estimators suggested using mean square error and interval length criterion. From cases of samples, we discovered that the results of the maximum product of spacing method are more competitive than those of the other methods. A two real‐life data sets are represented demonstrating how the applicability of the methodologies proposed in real phenomena.