درخت حوزه‌های تخصصی

Background: Hyper kyphosis is a common postural issue that affects many women, often leading to negative body image. Aim: The purpose of this research was to investigate the impact of an 8-week corrective exercise program on the body image of women with hyper kyphosis. Materials and Methods: The research method used in this study was quasi-experimental. The study population consisted of female students aged 18 to 26 years with hyper kyphosis at Shahid Rajaee University. Participants were randomly assigned to either the experimental group (n=20) or the control group (n=20). Hyper kyphosis was measured using a flexible ruler, while body image was assessed using the Body-esteem Scale for Adolescents and Adults. The questionnaire had a reliability coefficient of 0.83 as measured by Cronbach's alpha. After 8 weeks of corrective exercise, both the experimental and control groups completed the questionnaire again. The control group did not receive any training during this time. The data were analyzed using the mixed ANOVA method with SPSS-26 software at a significance level of 95%. Results: The results of the mixed ANOVA analysis showed that the main effect of the training group and the interaction between the group and test stages were significant in the post-test stage for the dependent variable of total body image (F=6.82, P =0.013), appearance (F=6.72, P =0.014), attitude (F=8.81, P =0.005), and kyphosis angle (F=18.91, P =0.000). However, there was no significant effect of training on weight satisfaction. Conclusion: The results of this study indicate that eight weeks of corrective exercise significantly reduced the hyper kyphosis angle ( P =0.01), resulting in an improvement in the subjects' posture and a decrease in deformity. This improvement in appearance led to an increase in satisfaction with their appearance, as demonstrated by improvements in their body image.

This study applied multi-faceted Rasch measurement to investigate the halo effect in the performance-based assessment of writing across rubric criteria. Five raters who had received specialized training applied a four-criteria rating rubric to analytically rate writing scripts on two argumentative topics. Facets, a Rasch computer program, was utilized to pinpoint the halo effect by analyzing rater and rubric criteria interactions. After examining the appropriateness of the rubric in terms of functionality, the results showed that except for one rater, the raters did not exhibit any sign of the halo effect across rubric criteria. Generally, the severity hierarchies for raters and difficulty levels for rubric criteria suggested that raters’ training and their perceptions of the importance of criteria were associated with their manifestation of the halo effect. Pedagogically, through a detailed facet analysis of interactions between raters and rubric criteria, rater trainers may better realize how to design effective training programs to minimize raters’ variance including the halo effect and improve the overall objectivity of human rating.