نتایج جستجو برای: روش ancova
تعداد نتایج: 372673 فیلتر نتایج به سال:
Service providers use impression management strategies to engender satisfaction and repeat business in customers. Managing emotional expressions is one strategy to meet those goals. We extended research on the ‘‘Duchenne Smile’’ to see if authenticity of employee expressions influenced the impressions formed of the employee s friendliness and the overall satisfaction with the encounter. Further...
PURPOSE To evaluate if degree of anxiety proneness is affected by seizure outcome after epilepsy surgery. METHODS Five scales related to anxiety, which are part of the Karolinska Scales of Personality (KSP), were administered pre-operatively and 2-8 years post-operatively to 31 female and 26 male patients. High scores indicate a high degree of anxiety. Seizure outcome was either Engel I or En...
A lower BMI has been reported among consumers of organic foods, but this relationship has never been examined in a prospective design study. Our aim was to prospectively investigate the association between frequency of organic food consumption and weight change. We analysed data from 62 224 participants of the NutriNet-Santé cohort (78 % women, mean age=45 years) with information on consumption...
OBJECTIVE Determining the effectiveness of the guided goal setting strategy on changing adolescents' dietary and physical activity self-efficacy and behaviors. DESIGN Adolescents were individually assigned to treatment (intervention with guided goal setting) or control conditions (intervention without guided goal setting) with data collected before and after the education intervention. SETT...
In semi-conductor manufacturing industry, production resembles an automated assembly line in which many similar products with slightly different specifications are manufactured step-by-step, with each step being a complicated physiochemical batch process performed by a number of tools. This constitutes a high-mix production system for which effective run-to-run control (RtR) and fault detection...
The pre-post test study with control group is one of the most widely used methods to evaluate clinical research and educational designs. The data analysis of this design is done in a variety of ways. However, considering that the interaction between the pre-test score and intervention score is considered a threat for external validity in these types of study designs, the ANCOVA test is recommen...
In this manuscript we present various robust statistical methods popular in the social sciences, and show how to apply them in R using the WRS2 package available on CRAN. We elaborate on robust location measures, and present robust t-test and ANOVA versions for independent and dependent samples, including quantile ANOVA. Furthermore, we present on running interval smoothers as used in robust AN...
BACKGROUND Dietary Guidelines are considered as a useful tool for the promotion of healthy dietary behaviors. In Iran, despite the development of the latest National Food-Based Dietary Guidelines, in 2006, it has not been introduced at the community level yet. The present study aims to evaluate the effectiveness of an intervention program to promote Iran's Food-Based Dietary Guidelines (IFBDGs)...
PURPOSE The purpose of this study was to identify accidental mortality during school activities of students in elementary, middle or high school in Seoul and consequent compensation payment. METHODS Fifty-eight students died due to accidents during the period 1988 through 2007. Data were obtained from the Seoul School Safety and Insurance Association, and Seoul Metropolitan Office of Educatio...
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