introduction: measuring tools in each study must be evaluated themselves. the goal of present study was designing, validating, and determining the reliability of some scales, which are used for measuring concepts of behavior change theory/models. materials & methods: this study was a descriptive one in which, at first literature review and need assessment were done. then designed tools were val...

We analyze a class of numerical schemes proposed in [26] for stochastic differential equations with multiple time scales. Both advective and diffusive time scales are considered. Weak as well as strong convergence theorems are proven. Most of our results are optimal. They in turn allow us to provide a thorough discussion on the efficiency as well as optimal strategy for the method. c © 2005 Wil...