one of the factors influencing the athletes’ performance in critical situations is their awareness of the strategies entailing mental skills. one such skill is self-talk that has been identified as an effective mental training tool in controlling human beings’ behaviors. this study aims to examine the perceived positive and negative effects of self-talk on the athletes’ performance. data were c...

This study examined gender differences on body image measures, and tested a model where self-esteem influences social physique anxiety (SPA), which in turn influences drive for muscularity and drive for thinness in a sample of adolescents (N=329; 58% boys). Multi-group invariance analyses indicated that the measurement and structural models were partially invariant for boys and girls, allowing ...

This study used a cluster analytic approach to identify self-esteem trajectories among adolescents over a four-year period from sixth to tenth grades (N = 1,160). Four self-esteem trajectories were identified thai replicated previous research: (1) consistently high, (2) moderate and rising, (3) steadily decreasing, and (4) consistently low. Female adolescents were more likely to be in the stead...

Self-affinity and self-similarity are fundamental concepts in fractal geometry. In this paper, they are related to collage grammars syntactic devices based on hyperedge replacement that generate sets of collages. Essentially, a collage is a picture consisting of geometric parts like line segments, circles, polygons, polyhedra, etc. The overlay of all collages in a collage language yields a frac...

This paper extends the research about the impact of an increase in background risk from cases with one decision variable to those with two decision variables. We apply the results of Eeckhoudt and Kimball (1992) to examine the comparative statics of an increase in background risk on demand for loss reduction that depends on market insurance and self-insurance together. We find that individuals ...

Previous research has demonstrated the efficacy of behavioral interventions in teaching self-feeding skills as well as in reducing inappropriate self-feeding behavior. The purpose of this study was to extend previous research on the use of prompting and reinforcement in reducing unsafe eating behaviors to the treatment of an adolescent with developmental disabilities and esophageal stricture. A...