درخت حوزه‌های تخصصی

One of the important challenges of organizational behavior is bullying in the workplace. The aim of the present study is to describe, analyze, and combine the analyses presented in the field of variables related to bullying in the workplace, and the meta-analysis method was used. The statistical population of this study included all scientific research articles and thesis available on the IranDoc website in Iran from 2011 to 2014. Among the studies conducted, 16 studies were selected for review based on the inclusion criteria. The data from these 16 studies were statistically analyzed based on the Pearson r correlation coefficient and the t-statistic for the Hedges' g fixed and random effects model. All statistical analyses were performed using CMA2 software. The findings showed that the average overall and combined effect size for the fixed effects model was 0.07 g=0.05, which was significant (P<0.05) and for the random effects model was 0.10 g=0.05, which was not significant (P<0.05). Therefore, the average effect size of the factors cannot be interpreted. Among the 48 factors identified, the discriminant effect size of 45 factors was significant. The factors that have the greatest impact on workplace bullying (P<0.05) include authoritative leadership (g=-1.28), demand balance (g=-1.01), fairness (g=1.01), excessive self-interest (g=1.44), contextual factors (g=1.56), jealousy (g=1.35), moral climate (g=-1.96), and moral leadership (g=-1.13).

This study aimed to evaluate the effectiveness of self-efficacy training in reducing perfectionism and enhancing self-worth among gifted high school students. A randomized controlled trial design was employed with 40 gifted high school students randomly assigned to either an intervention group (n = 20) or a control group (n = 20). The intervention group participated in an eight-session self-efficacy training program, while the control group received no intervention. Both groups were assessed at baseline, immediately post-intervention, and at a four-month follow-up. Perfectionism and self-worth were measured using validated scales. Data were analyzed using repeated measures ANOVA and Bonferroni post-hoc tests. The intervention group showed a significant reduction in perfectionism scores from baseline (M = 72.45, SD = 5.28) to post-intervention (M = 64.32, SD = 6.15) and follow-up (M = 66.89, SD = 5.92) compared to the control group, which showed no significant change. Similarly, self-worth scores in the intervention group increased significantly from baseline (M = 32.19, SD = 4.15) to post-intervention (M = 38.45, SD = 3.92) and follow-up (M = 36.98, SD = 4.20), whereas the control group showed no significant change. The ANOVA results indicated significant main effects of time (F(2, 76) = 27.12, p < .001) and group (F(1, 76) = 102.95, p < .001) for perfectionism, and time (F(2, 76) = 24.65, p < .001) and group (F(1, 76) = 111.30, p < .001) for self-worth, with significant interaction effects for both variables. Self-efficacy training is effective in reducing perfectionism and enhancing self-worth among gifted high school students. The positive effects were maintained at a four-month follow-up, suggesting the potential long-term benefits of such interventions in this population.

This study aims to explore the experiences of special education teachers in implementing differentiated instruction (DI) within mixed-ability classrooms. This qualitative research utilized a phenomenological approach to gain in-depth insights into the participants' experiences. Data were collected through semi-structured interviews with 25 special education teachers from various schools in a metropolitan area. Participants were selected through purposive sampling to ensure they had significant experience with DI. The interviews, each lasting 60 to 90 minutes, were transcribed verbatim and analyzed using thematic analysis. The data collection continued until theoretical saturation was achieved, ensuring a comprehensive understanding of the teachers' experiences. The analysis revealed three main themes: challenges in differentiated instruction, strategies for effective differentiation, and perceived effectiveness and outcomes. Teachers reported significant challenges, including resource limitations, managing student diversity, assessment difficulties, increased workload, and issues with parental involvement. To address these challenges, teachers employed strategies such as flexible grouping, curriculum adaptation, professional development, collaborative planning, and enhancing student engagement. The perceived effectiveness of DI included improved student progress, positive changes in classroom dynamics, increased teacher satisfaction, and greater inclusivity. Differentiated instruction is a vital approach in mixed-ability classrooms, promoting equitable learning opportunities for all students. Despite the challenges, the strategic implementation of DI leads to significant positive outcomes in student performance and classroom inclusivity. Schools should support teachers through professional development, adequate resources, and collaborative opportunities to enhance the effectiveness of DI. Further research should focus on larger, diverse samples and mixed-methods approaches to provide a more comprehensive understanding of DI practices.

The objective of this study was to explore the nutritional challenges and eating habits of children with Sensory Processing Disorders (SPD) through qualitative analysis. The focus was on identifying specific sensory sensitivities, emotional and behavioral impacts, and effective management strategies to improve nutritional outcomes. This qualitative study involved semi-structured interviews with caregivers of 20 children aged 4-12 years diagnosed with SPD. Participants were recruited from pediatric therapy centers, support groups, and online forums. Data were collected until theoretical saturation was reached. The interviews were transcribed and analyzed using thematic analysis to identify key themes and patterns related to eating behaviors and nutritional challenges. The analysis revealed five main sensory challenges impacting eating habits: texture sensitivity, taste sensitivity, smell sensitivity, visual sensitivity, and temperature sensitivity. Emotional and behavioral impacts included mealtime anxiety, food refusal, and social isolation. Various strategies were employed by parents and professionals to manage these challenges, such as implementing food routines, gradual food exposure, and sensory integration therapy. The study also highlighted nutritional deficiencies and growth concerns associated with restricted diets in children with SPD, as well as success stories where tailored interventions led to improvements in eating habits and overall nutritional status. Children with SPD face significant sensory, emotional, and behavioral challenges that impact their eating habits and nutritional intake. Tailored interventions that address individual sensory profiles and involve a collaborative approach between parents, educators, and healthcare professionals are crucial for managing these challenges effectively. The study underscores the need for ongoing research and practical strategies to support better nutritional outcomes for children with SPD.