نتایج جستجو برای: statistical significance
تعداد نتایج: 557274 فیلتر نتایج به سال:
I disagree with several of Chow’s traditional descriptions and justifications of null hypothesis testing: (1) accepting the null hypothesis whenever p . .05; (2) random sampling from a population; (3) the frequentist interpretation of probability; (4) having the null hypothesis generate both a probability distribution and a complement of the desired conclusion; (5) assuming that researchers mus...
Heinz recently completed a comprehensive experiment in self-play using the FRITZ chess engine to establish the ‘decreasing returns’ hypothesis with specific levels of statistical confidence. This note revisits the results and recalculates the confidence levels of this and other hypotheses. These appear to be better than Heinz’ initial analysis suggests.
A transnational survey was conducted in the United States and Egypt to examine the effects of viewing television dramas on the perception of social reality, and concepts of family and society by the two genders. The research also studied the relationship between the phenomenon of watching television and the subsequent importance placed on the concept of family and society. Differences between t...
OBJECTIVE It is well known that total cholesterol becomes less of a risk factor or not at all for all-cause and cardiovascular (CV) mortality with increasing age, but as little is known as to whether low-density lipoprotein cholesterol (LDL-C), one component of total cholesterol, is associated with mortality in the elderly, we decided to investigate this issue. SETTING, PARTICIPANTS AND OUTCO...
INTRODUCTION High-grade obesity raises some specific problems regarding the endourological approach. The aim of our study was to determine if this pathology might influence the outcome of retrograde ureteroscopy. MATERIALS AND METHODS We evaluated the outcome of 88 ureteroscopies performed in highly obese patients during the last 5 years. The data were compared with the results of 88 consecut...
BACKGROUND AND OBJECTIVES: The rise of electronic games has driven both concerns and hopes regarding their potential to influence young people. Existing research identifies a series of isolated positive and negative effects, yet no research to date has examined the balance of these potential effects in a representative sample of children and adolescents. The objective of this study was to explo...
INTRODUCTION Even though Ethiopia has been celebrating the achievements of MDG 4, still one in every 17 Ethiopian children dies before their first birthday. This is the biggest of the African regional average. Short birth interval is inconsistently reported as a risk factor by limited and independent studies in Ethiopia. Therefore, the purpose of this meta-analysis was to determine the pooled e...
BACKGROUND AND OBJECTIVES: The rise of electronic games has driven both concerns and hopes regarding their potential to influence young people. Existing research identifies a series of isolated positive and negative effects, yet no research to date has examined the balance of these potential effects in a representative sample of children and adolescents. The objective of this study was to explo...
BACKGROUND AND OBJECTIVES: The rise of electronic games has driven both concerns and hopes regarding their potential to influence young people. Existing research identifies a series of isolated positive and negative effects, yet no research to date has examined the balance of these potential effects in a representative sample of children and adolescents. The objective of this study was to explo...
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