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Seyed Abbas Ebrahimi, Mohsen Eynali, Hooshmand Bagheri Garabolagh,
Volume 10, Issue 19 (8-2020)
Abstract
In recent years, leadership studies have been expanded and new leadership models have been presented by scholars that one of these models is toxic leadership. Contrary to positivist leadership styles, toxic leadership emphasizes the negative aspects of a leader. The popularity of the dark leadership vision has led to the development of a toxic leadership model. The present study seeks to investigate the consequences of toxic leadership with an emphasis on mediation role of unit civility. This is a applied and descriptive study and has been performed by survey method. For this purpose, a sample of 210 sports athletes in Semnan were randomly selected. Data were collected with questionnaire and analyzed using structural equation modeling in Smart-Pls software. Findings show that, toxic leadership has a significant relationship with organizational cynicism and Intention to Leave. There was a negative and significant relationship between toxic leadership, organizational trust and unit civility. In addition, the unit civility has a negative and significant relationship with organizational cynicism and Intention to Leave. Also, there was a significant relationship between unit civility and organizational trust.
Shahrooz Shadrooz, Fatemeh Rezaei, Ayub Asadi,
Volume 14, Issue 28 (12-2024)
Abstract
This research aimed to determine the effect of directing attention in the form of verbal instructions and perceptual highlighting during modeling on children's learning of targeting skills. The current research was a semi-experimental type of research with a pre-test-post-test design. 60 male students between 7 and 10 years of age were selected purposefully from Bojnord primary schools. Current research tools included a number of video monitors, a vision tracker, a tennis ball, and a sable at a distance of 3 meters from the line of the throwing place on the wall. Subjects were divided into four training groups: internal focus modeling through instructions, external focus modeling through instructions, internal focus modeling through perceptual highlighting, and external focus modeling through perceptual highlighting. In the acquisition phase, all 4 groups performed 3 blocks of 10 each including 30 over-the-shoulder throws with a tennis ball during 5 sessions, and at the end of each session, they were tested and their scores were recorded by the examiner. The memory test was also performed after 36 hours of non-training. The data were used using the analysis of variance of the intersection test to investigate the effect of directing attention with verbal instructions and perceptual highlighting on motor learning in four groups at different test stages. Research results show that the two groups of perceptual highlighting with attention guidance (internal/external) in the phase of acquisition (P=0.005) and memorization (P=0.006) compared to the two groups of verbal instructions with Significant level (P<0.05) had better performance. Therefore, the use of perceptual highlighting doubles the effects of observational learning.
Ayoub Asadi, Sori Heydari, Fatemeh Shirmehenji, Fatemeh Kochakpour,
Volume 100, Issue 100 (10-2020)
Abstract
Many studies have shown the effectiveness of verbal instructions and observational training on the improvement of children’s motor skills; however, there is not enough information about the simultaneous effects of these two variables. The aim of this study was to investigate the effect of attention instructions during observation of the model on gaze behavior and accuracy of overarm throwing in children. 24 children 7 to 10 years of age with normal growth selected purposefully and randomly divided into two internal and external attentions during modeling groups. Training in both groups included observation 10 times skilled model overarm throwing’s film with eye movement recording, with the difference that before it each group received its own instruction. The results of mix-ANOVA and paired and independent t-tests showed that both groups showed a significant increase from the pre-test to post-test in the accuracy (p=0.001; p=0.001) and duration of the quiet eye (p=0.005; p=0.001) of overarm throwing. In the post-test, the external attention during modeling group compared to the internal attention during modeling had significantly higher accuracy (p=0.01) and longer quiet eye duration (p=0.001). Also, the external attention during modeling had more percentage viewing time to relevant external cues (ball and trajectory). Therefore, directing visual attention to movement effect of observed pattern cause improvement in motor performance and visual-motor expertise in children.
