نتایج جستجو برای: dependent t test
تعداد نتایج: 2019907 فیلتر نتایج به سال:
the aim of this study has been to find answers for the following questions: 1. what is the effect of immediate correction on students pronunciation errors? 2. what would be the effect of teaching the more rgular patterns of english pronunciation? 3. is there any significant difference between the two methods of dealing with pronuciation errore, i. e., correction and the teaching of the regular ...
BACKGROUND Since type-2 diabetes is the most common chronic disease among Iranian female adolescents, we applied theory of planned behavior to examine the effect of training to intention to preventative nutritional behaviors for type-2 diabetes among female adolescents. METHODS In this experimental study 200 (11-14 year old) girls from 8 schools of Tehran city (100 in each intervention and co...
abstract the current study set out to address the issue as to whether the implementation of portfolio assessment would give rise to iranian pre-intermediate efl learner autonomy. participants comprised 60 female in pre-intermediate level within the age range of 16-28.they were selected from among 90 language learners based on their scores on language proficiency test -key english test. then, t...
Objective: this study focuses on viewpoint of instructors about addiction prevention elements in the content of the thinking and life style book of seventh grade in academic year 2013-14. Method: this study is a descriptive survey with sample of 74 instructors of seventh grade, selected by proportional stratified random method. The study tool is author designed inventory to review perceptions a...
background : the existing evidence about the clinical situations of the bipolar patients with opioid dependence is scarce. the present study was carried out to compare the clinical features and course of the bipolar disorder type i regarding the two subgroups of opioid dependent and non-dependent. methods : there were 178 adult patients with bipolar disorder type i consecutively referred to the...
OBJECTIVE To evaluate the frequency of risk behaviors for eating disorder (ED) in patients with type 1 diabetes (T1D) and their association with gender, nutritional status, variables related to T1D, and body satisfaction. METHOD 189 individuals with T1D (12-56 years old) answered the Bulimic Investigation Test (BITE), the Eating Attitude Test (EAT), the Binge Eating Scale (BES), Stunkard's Fi...
BACKGROUND Infants are considered large for gestational age (LGA) if their birth weight is greater than the 90th percentile for gestational age and they have an increased risk for adverse perinatal outcomes. Maternal diabetes is one of the factors affecting birthweight. However there are limited data on the perinatal outcomes of infants of gestational diabetic mothers. The aim of the present st...
We examine methods for measuring performance in signal-detection-like tasks when each participant provides only a few observations. Monte Carlo simulations demonstrate that standard statistical techniques applied to a d' analysis can lead to large numbers of Type I errors (incorrectly rejecting a hypothesis of no difference). Various statistical methods were compared in terms of their Type I an...
We show that a commonly used statistic of genotypic diversity can be used to reflect one form of deviation from panmixia, viz. clonal reproduction, by comparing observed and predicted sample statistics. The characteristics of the statistic, in particular its relationship with population genotypic diversity, are formalised and a method of predicting the genotypic diversity of a sample drawn from...
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