Multivariate Multiple Regression Analysis Research Articles

Teachers' multicultural attitudes and perspective taking abilities as factors in culturally responsive teaching.

BackgroundCulturally responsive teaching (CRT) has been associated with increased student engagement and achievement. Its practice in classrooms, however, has been shown to be less than optimal. Nonetheless, certain teacher qualities have been suggested to facilitate its practice.AimsThe current study sought quantitative evidence in support of two of these teacher qualities, namely teachers’ multicultural attitudes, and their perspective taking abilities. By identifying the strength of the suggested relationships, we aimed to examine the generalizability of previous findings in the literature and inform teachers’ professional development and interventions.SampleA total of 143 primary school teachers from different parts of the Netherlands responded to our online survey.MethodsWe conducted a multivariate multiple regression analysis to investigate the relationship between these qualities and teachers’ engagement in two separate but related components of CRT (i.e., socially sensitive and culturally sensitive teaching).ResultsResults of our analysis yielded significant relationships between the two teacher qualities and the frequency with which teachers engage in socially and culturally sensitive teaching. Perspective taking was a stronger predictor for both aspects of CRT.ConclusionThese findings signal the significance of incorporating especially perspective taking experiences and exercises into teacher education and professional development programmes, which could benefit all students regardless of their backgrounds. Our results are promising as these qualities are malleable and thus can be improved.

Transscleral ultrasonographic measurements of the optic nerve sheath diameter and a regression analysis with morphometric measures of the globe in dogs

To describe transscleral ultrasonography as a novel alternative approach for visualising the optic nerve sheath and measuring its diameter and to analyse the linear regressions of the optic nerve sheath diameter value with the weights and morphometric measurements of the globe in dogs. Forty healthy dogs admitted for routine sterilisation were examined. Under general anaesthesia, a B-mode ultrasonography with a linear probe (9–18 MHz) was applied transscleral in the dorso-temporal quadrant. The optic nerve sheath diameter was measured 3 mm behind the caudal aspect of the globe. The morphometric measurements, including the axial globe, lens thickness and vitreous chamber, were estimated by two observers using the direct corneal approach. Univariate and multivariate multiple linear regression analyses were performed to explore the associations of the independent predictors with dependent variables. The optic nerve sheath diameter intraclass correlation coefficient (ICC) analyses revealed interobserver 0.91 (ICC = 0.83–0.95) and intraobserver 0.93 (ICC = 0.87–0.96) reliability. The multiple regression analysis revealed that the optic nerve sheath diameter was associated with the weight (R<sup>2</sup> = 0.60, P < 0.0001) but not with the axial globe (P = 0.48), the lens thickness (P = 0.73) or the vitreous chamber (P = 0.99). The findings of this study suggest that transscleral ultrasonography may be a valid alternative approach for the optic nerve visualisation and optic nerve sheath diameter measurements with excellent intra- and interobserver repeatability. The optic nerve sheath diameter was associated with the body weight, but not with the morphometric measurements of the globe.

Association of low-level blood lead with serum uric acid in U.S. adolescents: a cross-sectional study

BackgroundUncertainty remains regarding the association between blood lead levels (BLL) and serum uric acid (SUA) with relatively low BLL exposure because of limited data in the adolescent population. We examined the association between BLL and SUA in U.S. adolescents.MethodsIn this cross-sectional study, 8303 adolescents aged 12–19 years from NHANES 1999–2006 were analyzed. BLL was Ln-transformed for analysis for the skewed distribution. Elevated SUA was defined as ≥5.5 mg/dL. Multivariate linear and multiple logistic regression analyses were performed to evaluate the association of BLL with SUA and elevated SUA. Moreover, a generalized additive model (GAM) and a fitted smoothing curve (penalized spline method) were conducted.ResultsThe overall mean BLL was 1.3 μg/dL. Multivariate linear regression analyses showed that LnBLL was independently and positively correlated with SUA level (β = 0.13, 95%CI: 0.09–0.17). Multiple logistic analyses showed that LnBLL was associated with a 24% increased prevalence of elevated SUA (OR = 1.24; 95% CI, 1.11–1.38). Analyses using restricted cubic spline confirmed that the associations of LnBLL with SUA and elevated SUA were linear. Subgroup analyses showed that stronger associations between LnBLL and SUA were detected in adolescents with lower levels of education and estimated glomerular filtration rate (eGFR) (all P for interaction < 0.05).ConclusionsBLL was independently and positively correlated with SUA level and elevated SUA among U.S. adolescents, particularly with lower levels of education and eGFR. The data suggest that there is no “safe” threshold level of exposure to lead.Graphical abstract

An exploratory value-cost approach in predicting college students’ achievement goals in multicultural education

ABSTRACT Student resistance is inevitable in the process of multicultural education, but few researchers have explored the dynamics of student motivation. The purpose of this study was to help bridging the gap between motivation and multicultural education by examining the value and cost beliefs of college students in diversity learning, and how those beliefs predict their achievement goals. Participants were 173 college students who were predominantly education majors (86.1%), White (65.9%), and female (80.9%). Exploratory factor analysis results showed that students mainly harbored value and cost beliefs in diversity learning. Multivariate multiple regression analyses results demonstrated an overall significant predictive power of students’ value-cost beliefs over their achievement goals. In particular, students who perceived higher values of multicultural education reported more mastery-approach goals, whereas those who perceived higher cost of multicultural education endorsed more performance-approach goals. While confirming the importance of instilling high values to help cultivate optimal learning goals for college students, the results suggest the potential detrimental effects of perceived high cost of multicultural education. The study has important implications for educators to improve student motivation in diversity learning. Future research can further examine the factor structure of college students’ value-cost beliefs and their longitudinal effects on achievement goals.

Interrelation Between Appearance Anxiety and Sexual Functions in Women: The Role of Surgical Scars, Morphologic Features, and Accompanying Depression

IntroductionThe findings regarding the association between body mass index (BMI) and sexuality outcomes are mixed. Subjective body image has been found to be more salient in predicting sexual function than actual body size. Previous studies have demonstrated appearance anxiety to be particularly significant. AimTo evaluate the association between appearance anxiety and female sexual functions. Specific aims included the evaluation of body morphologic measurements with indicators other than BMI and determining the predictive role of surgical scars for appearance anxiety and female sexual function. MethodsSexually active women who had been in a stable heterosexual relationship for ≥6 months participated in this study. Demographic features, anthropometric measurements including BMI, skin-fold thickness (SFT) measurements from 3 regions of the body (triceps, scapula, and abdomen) and waist circumference (WC) were assessed. Finally, participants were asked to complete the Appearance Anxiety Inventory, Female Sexual Function Index, and Beck Depression Inventory. Multivariate path analyses and hierarchical multiple regression analyses were performed. Main Outcome MeasuresThe correlations of age, BMI, presence of surgical scars, and measurements of BMI, WC, and SFT as independent variables with Beck Depression Inventory, Appearance Anxiety Inventory, and Female Sexual Function Index scores were the main outcomes of the study. ResultsThe data of 329 women were analyzed. The median age of the participants was 33 (19–52) years. The mean BMI was 24.5 (SD 3.5) kg/m2. The prevalence of female sexual dysfunction was 22.8%. Multivariate analyses revealed that increased appearance anxiety (−0.45), presence of surgical scars (−0.28), accompanying depression (−0.15), SFT abdomen measurement (−0.16), and age (−0.13) were significantly associated with sexual function. Appearance anxiety was found to be associated with accompanying depression (0.56), presence of surgical scar (0.38), and measurements of the WC (0.22), BMI (0.14), SFT-abdomen (0.12), and SFT-triceps (−0.31). Clinical ImplicationsClinicians should take the strong relationship between appearance anxiety and female sexual function into consideration. Body morphologic evaluation should not be limited to BMI; surgical scars and WC and SFT measurements may play a considerable role. Strengths & LimitationsA major limitation of this study was the lack of personal distress evaluation in the participants. ConclusionSexual complaints in middle-aged women revealed the strongest correlation with appearance anxiety. Further longitudinal studies are needed to reveal its underlying factors and implications for sexuality.Cihan A, Cihan E. Interrelation Between Appearance Anxiety and Sexual Functions in Women: The Role of Surgical Scars, Morphologic Features, and Accompanying Depression. J Sex Med 2019;16:1769–1778.

Pain and sleep problems predict quality of life for veterans with serious mental illness.

Poor sleep and pain are common in veterans with serious mental illness (SMI), yet it is unclear how these may impact dimensions of quality of life. As such, this study examined independent and additive contributions of sleep and pain difficulties on quality of life (QoL) among a sample of veterans with SMI and insomnia. Participants were 57 veterans with SMI (schizophrenia spectrum, bipolar, or major depressive disorders with significant functional impairment) and at least subthreshold insomnia (Insomnia Severity Index ≥8). Measures assessed sleep quality (Pittsburgh Sleep Quality Index), pain intensity (Pain Numeric Rating Scale [PNRS]), pain interference (Short Form 12 Health Survey), and QoL (World Health Organization Quality of Life-BREF). Multivariate multiple regression analyses examined the effects of sleep quality and pain on QoL. Forty-one veterans (71.9%) reported moderate-to-severe pain (PNRS ≥4). Poorer sleep quality was associated with greater pain interference and worse physical, emotional, and environmental QoL. Sleep quality, not pain, explained significant variance in environmental QoL (b = -2.30; 95% confidence interval [CI: -4.16, -.43]). Pain interference, not sleep quality, explained significant variance in physical health-related QoL (b = -.23; 95% CI [-.38, -.08]). Results reveal the importance of screening for insomnia and chronic pain among veterans with SMI. For these veterans who already struggle with daytime functioning, interventions such as integrated cognitive-behavioral therapy for pain-related insomnia are warranted. Such treatments must account for how sleep disturbance and chronic pain may differentially impact multiple facets of QoL. (PsycINFO Database Record (c) 2019 APA, all rights reserved).

Does cardiorespiratory fitness knowledge carry over in middle school students?

Conceptual knowledge development in physical education is critical to helping learners become physically literate. Understanding physical education learners' long-term knowledge development is one of the first steps in designing effective curriculum. Guided by the constructivist learning theory, this study aimed to determining the extent to which the cardiorespiratory fitness knowledge learned in the first year contributed to further knowledge development in the second year. A two-year longitudinal design was adopted to track 716 students' learning documented in their physical education workbook from sixth grade to seventh grade. Canonical correlation and multivariate multiple regression analyses were conducted to determine the relationship of learning during the two years. The results showed that student knowledge development in the first year did facilitate their knowledge development in the second year (Rc = 0.54; Wilks' λ = 0.69, F(9, 1728.1) = 30.99, p < .01, η2 = .31). Specifically, students' three types of knowledge development (descriptive, relational, and reasoning) were all significant contributors (descriptive: Wilks' λ = 0.96, F(3, 710) = 9.34, p < .01, η2 = .04; relational: Wilks' λ = 0.98, F(3, 710) = 4.44, p < .01, η2 = .02; reasoning: Wilks' λ = 0.90, F(3, 710) = 26.13, p < .01, η2 = .10) to their further learning with the knowledge development from the reasoning assignments to be the strongest facilitator. Students' overall learning in the first year significantly contributed to their descriptive (R2 = 0.12), relational (R2 = 0.26), and reasoning (R2 = 0.21) knowledge learning in the second year.

Vitamin D receptor gene polymorphisms affecting changes in visceral fat, waist circumference and lipid profile in breast cancer survivors supplemented with vitamin D3

ObjectiveWe investigated whether vitamin D receptor (VDR) polymorphisms are associated with circulating metabolic biomarkers and anthropometric measures changes in breast cancer survivors supplemented with vitamin D3.MethodsOne hundred sixty-eight breast cancer survivors admitted to Shohaday-e-Tajrish hospital received 4000 IU of daily vitamin D3 supplements for 12 weeks. Anthropometric measurements as well dietary, physical activity and plasma metabolic biomarkers assessments were performed before and after intervention. VDR polymorphisms were considered as the main exposures. Multivariate multiple linear regression analyses were used to determine the association between the VDR single-nucleotide polymorphisms (SNPs) and changes in metabolic and anthropometric measures in response to vitamin D3 supplementation.ResultsOne hundred twenty-five (85%) women had insufficient and inadequate levels of plasma 25-hydroxy vitamin D (25(OH)D) at baseline. Compared to the AA genotype of the ApaI, the aa category showed greater increase in muscle mass [71.3(10.7131.9)] and higher decrease in LDL-C [− 17.9(− 33.6, − 2.3)] levels after adjustment for potential confounders. In addition, the heterozygous genotype (Bb) of the BsmI VDR was associated with higher increase in WC following vitamin D3 supplementation, compared to BB [2.7(0.1,5.3)]. Haplotype score analyses indicate a significant association between inferred haplotypes from BsmI, ApaI, TaqI and FokI, BsmI and Cdx2 VDR polymorphisms and on-study visceral fat changes.ConclusionsFindings of this study showed that genetic variation in the VDR gene was associated with changes in cardio-metabolic parameters in breast cancer survivors, supplemented with vitamin D3, results could provide a novel insight into better understanding of which subset of individuals benefit most from normalization of vitamin D status.Trial registrationThis trial has been registered on the Iranian Registry of Clinical Trials (IRCT) under the identification code: IRCT2017091736244N1, registration date: 2017-11-10, http://www.irct.ir/trial/27153 and was approved by the ethics committees of the National Nutrition and Food Technology Research Institute (NNFTRI), Shahid Beheshti University of Medical Sciences (SBMU).

Electrophysiological Cardiac Parameters and Results of Antiarrhythmic Treatment in Patients with Paroxysmal Atrial Fibrillation (Lone and Associated with Arterial Hypertension)

to assess cardiac electrophysiological parameters in patients with paroxysmal atrial fibrillation (AF), lone or with concomitant arterial hypertension (AH), and their prognostic significance relative to treatment effectiveness. We included in this study 184 patients with paroxysmal AF (84 with concomitant AH and 100 with presumed lone AF). Cardiac electrophysiological study was performed in accordance with standardized protocol that included assessment of sinus node recovery time, sinoatrial, intraatrial and interatrial conduction time, and effective refractory periods (ERP) of right and left atria and atrioventricular node. Patients with inducible supraventricular reentrant arrhythmias that could potentially trigger AF underwent catheter radiofrequency ablation of those arrhythmias. Other patients received either antiarrhythmic drug therapy (AAD; n=79) or catheter cryo-ablation (CBA; n=81). Treatment was considered ineffective in case of any symptomatic or asymptomatic AF episode documented by ECG or Holter ECG within 12 months of follow-up. Patients with lone AF compared with those with AH had shorter ERP of the right atrium (219±21 ms vs. 253±44 ms, respectively, p&lt;0.05) and more prominent dispersion of ERP of right and left atria (median 40 ms, interquartile range 10-50 ms vs. median 20 ms, interquartile range 10-22.5 ms, respectively, p&lt;0.05). There was no statistically significant difference in other electrophysiology parameters between the groups. Sustained supraventricular reentrant arrhythmias were induced in 9% (9 of 100) patients with presumed lone AF and in 1.2% (1 of 84) patients with AH (p&lt;0.05). All these arrhythmias were successfully ablated, and patients had no AF recurrence during 12-month follow-up. Among other patient treatment (CBA n=81, AAD n=79) was effective in 64% of those with lone AFib and in 34% - with AH (p&lt;0.05). In multivariate multiple regression analysis, none of electrophysiological parameters could be assumed as a factor associated with the efficacy of CBA or AAD. Patients with lone AF had more prominent atrial electrophysiological inhomogeneity compared with patients with concomitant AH. Cardiac electrophysiological parameters had no influence on effectiveness of antiarrhythmic treatment.

The Influence of E-Learning as a Complement on Student Learning Satisfaction in Batam

The utilization of e-learning as a complementary learning requires careful consideration by the Higher Education, so that e-learning can provide benefits and improve student satisfaction, especially employee class students in Batam City. The aim of the study was to find out whether there was an effect of expediency, ease of use, social influence, and conditions of supporting facilities on student learning satisfaction in using e-learning as a complementary learning tool in Batam City. Data was taken from random distribution of questionnaires to 207 respondents of students of Information Systems Study Program Batam International University and Putera Batam University who used e-learning as a complement to learning. Research uses a quantitative approach. Data were analyzed by multivariate multiple regression analysis. The results of the analysis show the significance of Benefit 0,000 with a coefficient of 0.322, significance of Ease of Use 0,000 with coefficient of 0.286, significance of Social Influence 0.002 with coefficient of 0.187 and significance of Conditions of Supporting Facilities 0.001 with coefficient of 0.197. It can be concluded that usefulness, ease of use, social influence and conditions of supporting facilities have a significant positive influence on learning satisfaction.

Therapeutic alliance trajectories and associations with outcome in psychodynamic child psychotherapy.

This study investigated therapeutic alliance (TA) trajectories, their demographic and symptomatic predictors, and associations with outcome in psychodynamic child psychotherapy. The sample included 89 Turkish children (Mage = 6.87, SD = 2.11, 46% girls) with internalizing (37.11%), externalizing (21.14%), and comorbid (38.20%) problems; 12% of the children were in the nonclinical range. Independent raters coded 328 sessions from different phases of treatment using the Therapy Process Observational Coding System-Alliance Scale. Outcome measures were collected at intake and termination (Children's Behavior Checklist and Teacher Rating Form). Multilevel growth curve modeling indicated that TA showed a quadratic trend (high-low-high) over the course of treatment. The shape-of-change methodology indicated three subgroups following a stable pattern, a slow and an accelerated quadratic TA trajectory. Externalizing problems (teacher report) negatively predicted average TA strength. Boys and children with internalizing problems showed a declining TA trajectory, whereas children with externalizing problems (teacher report) showed an upward TA trajectory. Multivariate multiple regression analyses showed that the average TA (i.e., intercept) and the positive quadratic slope (the high-low-high pattern) positively predicted changes in internalizing and externalizing problems (teacher report). This study was the first to show the course of TA development in psychodynamic child psychotherapy, identify a number of child characteristics that facilitate and impede TA. Investigating both the strength and patterns of TA development when examining associations with outcome is important. (PsycINFO Database Record (c) 2019 APA, all rights reserved).

프로 스포츠선수의 소셜 미디어 활동 속성이 구단 이미지, 구단 충성도, 관람의도에 미치는 영향

The purpose of this study was to investigate the relationship between social activity attributes of the professional sport athletes, team image, team loyalty and visiting intention. Toward this end, fan cafe members of the professional sports athletes were selected as a study population. A total of 247 members was conveniently selected and responded to on-line survey questionnaire. 237 usable data were utilized in data analyses procedure including frequency analysis, exploratory factor analysis, reliability analysis, correlation analysis, and multivariate multiple regression analysis with SPSS 23.0. The results of this study were as follows. Firstly, all the three sub-dimensions of the social media activity attributes had significant influence on team image. Secondly, information and entertainment sub-dimensions had significant effects on team loyalty. Thirdly, interactivity and entertainment sub-dimensions significantly affected visiting intention. Discussions and additional implications were also suggested.

Impact of a bottom-up community engagement intervention on maternal and child health services utilization in Ghana: a cluster randomised trial

BackgroundGhana is among African countries not likely to achieve the Sustainable Development Goal (SDG) three (3) target of reducing maternal mortality to 70 per 100,000 live births by the year 2030 if maternal and child health services utilization are not improved. Community engagement in health is therefore advocated to help address this challenge. This study evaluated the impact of a community engagement intervention on maternal and child health services utilization in Ghana.MethodsThis study was a cluster randomised trial among primary healthcare facilities (n = 64) in the Greater Accra and Western regions in Ghana. Multivariate multiple regression analysis and paired-ttest were used to determine impact of the community engagement intervention on maternal and child health indicators at baseline and follow-up.ResultsIntervention health facilities recorded significant improvements over control facilities in terms of average spontaneous vaginal deliveries per month per health facility (baseline mean = 15, follow-up mean = 30, p = 0.0013); child immunizations (baseline mean = 270, follow-up mean = 455, p = 0.0642) and female condoms distribution (baseline mean = 0, follow-up mean = 2, p = 0.0628). Other improved indicators in intervention facilities were average number of Human Immunodeficiency Virus (HIV) tests for non-pregnant women (baseline mean = 55, follow-up 104, p = 0.0213); HIV tests for pregnant women (baseline mean = 40, follow-up mean = 119, p = 0.0067) and malaria tests (baseline mean = 43, follow-up mean = 380, p = 0.0174). Control facilities however performed better than intervention facilities in terms of general laboratory tests, voluntary counselling and testing, treatment of sexually transmitted infections, male child circumcisions and other minor surgical procedures.ConclusionCommunity engagement in health has the potential of improving utilization of maternal and child health services. There is the need for multi-stakeholder dialogues on complementing existing quality improvement interventions with community engagement strategies.

Signaling pathway network alterations in human ovarian cancers identified with quantitative mitochondrial proteomics

RelevanceMolecular network changes are the hallmark of the pathogenesis of ovarian cancers (OCs). Network-based biomarkers benefit for the effective treatment of OC.PurposeThis study sought to identify key pathway–network alterations and network-based biomarkers for clarification of molecular mechanisms and treatment of OCs.MethodsIngenuity Pathway Analysis (IPA) platform was used to mine signaling pathway networks with 1198 human tissue mitochondrial differentially expressed proteins (mtDEPs) and compared those pathway network changes between OCs and controls. The mtDEPs in important cancer-related pathway systems were further validated with qRT-PCR and Western blot in OC cell models. Moreover, integrative analysis of mtDEPs and Cancer Genome Atlas (TCGA) data from 419 patients was used to identify hub molecules with molecular complex detection method. Hub molecule–based survival analysis and multiple multivariate regression analysis were used to identify survival-related hub molecules and hub molecule signature model.ResultsPathway network analysis revealed 25 statistically significant networks, 192 canonical pathways, and 5 significant molecular/cellular function models. A total of 52 canonical pathways were activated or inhibited in cancer pathogenesis, including antigen presentation, mitochondrial dysfunction, GP6 signaling, EIF2 signaling, and glutathione-mediated detoxification. Of them, mtDEPs (TPM1, CALR, GSTP1, LYN, AKAP12, and CPT2) in those canonical pathway and molecular/cellular models were validated in OC cell models at the mRNA and protein levels. Moreover, 102 hub molecules were identified, and they were regulated by post-translational modifications and functioned in multiple biological processes. Of them, 62 hub molecules were individually significantly related to OC survival risk. Furthermore, multivariate regression analysis of 102 hub molecules identified significant seven hub molecule signature models (HIST1H2BK, ALB, RRAS2, HIBCH, EIF3E, RPS20, and RPL23A) to assess OC survival risks.ConclusionThese findings provided the overall signaling pathway network profiling of human OCs; offered scientific data to discover pathway network-based cancer biomarkers for diagnosis, prognosis, and treatment of OCs; and clarify accurate molecular mechanisms and therapeutic targets. These findings benefit for the discovery of effective and reliable biomarkers based on pathway networks for OC predictive and personalized medicine.

When groups experience conflict: intersection among undergraduates’ individual and group motivational goals, project commitment, and emotions

Given the prevalence of group project assignments in college coursework, it is surprising that the extensive literature on achievement goal orientations has rarely included students’ experiences during an assigned group project, especially when group conflict among group members is reported. Data came from online responses of 660 undergraduates (394 women; from all schools/colleges; all levels but 46% seniors; nearly half white/Caucasian but 22% of Asian and 13% Latin background). Multivariate multiple regression analysis was used to predict three outcomes (students’ project commitment, positive emotions, and negative emotions), testing as predictors students’ motivational goals, at both individual and group levels (Models 1 and 2), as well as their perceptions of intragroup conflict (Model 3). Fit tests of the multivariate regressions indicated that adding a measure of intragroup conflict to students’ individual and group motivational goals significantly improved the prediction of project commitment and negative (but not positive) emotions.

Workplace incivility and its influence on professional quality of life among nurses from multicultural background: A cross-sectional study.

To investigate the workplace incivility of nurses working in two Saudi hospitals and analyse its influence on the nurses' professional quality of life (ProQOL). The prevalence and economic impact of workplace incivility cannot be overstated and disregarded. To the current authors' knowledge, no extensive study on this topic has been conducted in Saudi Arabia. The influence of workplace incivility to ProQOL of nurses from different cultural backgrounds has never been thoroughly investigated. Descriptive, cross-sectional design. A sample of 378 nurses working in two government hospitals in Saudi Arabia were surveyed using the Nursing Incivility Scale and the ProQOL Scale version 5 from February to May 2018. A multivariate multiple regression analysis was conducted to analyse the multivariate effect of workplace incivility on the nurses' ProQOL. The study adhered to the STROBE guideline (See Supporting Information File 1). The nurses perceived a moderate level of workplace incivility from the different sources of uncivil acts measured in this study. Among the five sources of incivility explored in this study, the nurses reported the majority of workplace incivility experienced from patients/visitors (M=2.44, SD=0.80), while the lowest was from supervisors (M=1.90, SD=0.66). The mean scores of the respondents in the compassion satisfaction, burnout and secondary traumatic stress subscales were 36.50 (SD=6.30), 26.43 (SD=4.81) and 26.47 (SD=6.06), respectively. General incivility, supervisor incivility, physician incivility and patient/visitor incivility showed a significant multivariate effect on the three ProQOL subscales. Nurses' experience of workplace civility and its sources were associated with ProQOL. The findings of this study can be used as guide in establishing human resource policies towards achieving nurses' needs, reducing workplace incivility and improving ProQOL.

Dimension Reduction in Multivariate Linear Regression

We defined some elementary terminology. It includes the vector space, linear combination, set of independent vectors, dependent vectors, basis of vector space, and direct sum of subspaces. This theory can help us lower the dimension of a given vector spaces. We apply to multivariate linear multiple regression analysis. It not only simplifies the computation and eases the interpretation, but also reduce the rate of errors. Cook (2010) developed an envelope model for the same reason. The main objective in that model is decomposing the covariance matrix into the sum of two matrices, each of whose column spaces either contains, or is orthogonal to, the subspace containing the mean. In other words, break the covariance matrix into the direct sum of the subspaces.

Domains of Living and key demographics

PurposeThe purpose of this paper is to investigate the impact of key demographics (i.e. gender, age, education and income) on the rich Muslim consumers’ Domains of Living (DoL). DoL were broken down into being, belonging and becoming domains. Relationship between the DoL and luxury consumption behavior (LCB) was analyzed as well. Being domain included elements that indicated who one is and how one defines the self; belonging domain linked an individual to his/her environment; and becoming domain referred to the set of social activities that an individual performed.Design/methodology/approachA questionnaire-based survey was conducted to get insights into the LCB of affluent Muslim consumers and how these insights related to key demographics and DoL. The researched population was Qatari consumers who were buying luxury products and belonged to a high-income bracket. Stratified sampling method was considered appropriate because the key objective of the study was to generalize the results across the affluent Qatari population. Stratification of the population was primarily done through the selected demographic variables. This research survey, conducted in Qatar, resulted in the collection of 213 usable questionnaires. General Linear Model Multivariate Analysis and Multiple Regression Analysis were used to establish the goodness of fit and to test the proposed hypotheses.FindingsResults indicated that there were significant LCB differences between the genders, age groups, income levels and educational background. Furthermore, there was a significant association between the three DOLs and LCB. There were indications that for affluent Qatari Muslims, consumption of luxury products had become a socially accepted norm. Fulfillment of luxury needs did not isolate rich Muslims from their family and friends or made them unhappy about luxury consumption. This behavior could be related to high levels of affluence among Qataris that makes acquisition of luxury products easy and not effort or time intensive.Practical implicationsIslamic luxury markets need to adopt an appropriate balance of global (considering global luxury trends) and local (based on cultural, social and religious forces) marketing strategies to engage rich Muslim consumers.Originality/valueThis paper presents LCB from the perspective of affluent Muslim consumers within the context of DoL and through the lens of key demographic variables.

Mechanisms of Moral Disengagement and Their Associations With Indirect Bullying, Direct Bullying, and Pro-Aggressive Bystander Behavior

This study examined the links between seven specific mechanisms of moral disengagement and indirect bullying, direct bullying, and pro-aggressive bystander behavior. In addition, the moderating role of gender on these associations was examined. Participants were 317 Swedish students in Grades 4 to 8 ([Formula: see text], SD = 1.35; 62% girls). Multivariate multiple regression analyses showed that indirect bullying was predicted by gender and victim attribution. Direct bullying was predicted by moral justification, and for girls, by victim attribution. Pro-aggressive bystander behavior was predicted by diffusion of responsibility, victim attribution, gender, and age. That is, boys and younger students were more prone to take the aggressor’s side compared with girls and older students. Furthermore, the relation between pro-aggressive bystander behavior and distortion of consequences appeared stronger in boys than in girls. These results highlight the relative importance of specific moral disengagement mechanisms and may have implications for interventions targeting bullying.

Alexithymia, Depression, Trait-anxiety and Their Relation to Self-reported Retrospective Dream Experience

The present research explored the relationship between alexithymia, self-reported depression and trait anxiety and dreaming experience in a non-clinical sample. Characteristics of the alexithymia trait, such as the deficit in the symbolic representation of emotions and the limited imaginative ability, can have an impact on the richness and quality of dream experience. Depression and trait anxiety are both reported to be related to alexithymia and dreaming. A group of 30 non-clinical subjects (20 females) participated in the study. Alexithymia was assessed with the Toronto Structured Interview for Alexithymia (TSIA), an observer-report instrument composed of 24 questions that assesses a general subjective level of alexithymia and 4 dimensions of alexithymia: Identifying emotional feelings (DIF), Describing emotional feelings (DDF), Imaginal Processes (IMP); and Externally oriented thinking (EOT). The subjective dreaming experience was assessed with the Mannheim Dream Questionnaire (MADRE), an instrument that was designed to elicit some form of dream history including dream recall frequency, use and correlates of dream, attitude towards dream and presence of different kinds of dreams experience, such as nightmares, lucid dreams, and deja-vu. The BDI-2 and the STAI-Y2 were administered to evaluate negative affect. Two multivariate multiple regression analysis were carried on. Results showed that alexithymia was related to dream correlates and to attitude towards dream. Trait anxiety was found to be related to nightmares frequency and self-reported depression to deja-vu event. In the future, it would be interesting to use a larger and more representative sample. The use of clinical population, such as nightmare sufferers or patients with sleep and/or mental disorders, could possibly disclosure further meaningful relationships among affect dysregulation, affect modulation and self-reported retrospective dream characteristics.