abstract aim and background: sulloway suggested that birth-order has a significant effect on personality traits, proposing first-borns children are more perfectionistic and more neurotic than later-borns. in abnormal form, perfectionism is closely associated with eating disorders and obsessive compulsive. the purpose of this study was to investigate the effect of birth-order on perfectionism, p...

The possibility that researchers should be able to obtain data from all cases is questionable. There a need; therefore, this article provides probability and non-probability sampling. In paper we studied the differences similarities of two with approach more fritter away time, cost sufficient energy required throughout sample observed. pair shows between them, different articles were reviewed c...

Analyzing data sets of billions of records has now become a regular task in many companies and institutions. In the statistical analysis of those massive data sets, sampling generally plays a very important role. In this work, we describe a scalable simple random sampling algorithm, named ScaSRS, which uses probabilistic thresholds to decide on the fly whether to accept, reject, or wait-list an...

There are many sources of error in counting votes: the apparent winner might not be the rightful winner. Hand tallies of the votes in a random sample of precincts can be used to test the hypothesis that a full manual recount would find a different outcome. This paper develops a conservative sequential test based on the vote-counting errors found in a hand tally of a simple or stratified random ...

We have developed a new technique to characterize the multi-line emission from molecular clouds using statistical sampling. Our method uses available extinction maps select relatively small sample of cloud positions that cover full range column densities in cloud, and can be observed with only modest investment telescope time. Here we present first results applying this Perseus nearby star-form...

aim and background: the purpose of this study was to investigate the relationship between cognitive intelligence and ambiguity tolerance with entrepreneurship of west azarbayjan payam noor university students, iran. methods and materials: this cross-sectional correlational research was conducted during 2010-2011 academic years. 1122 student (672 female and 450 male) were selected using stratifi...

the study focuses on identifying the university incubators existing infrastructure and their role in the university spin-offs establishment. the study adopts an integrated approach as its methodology. the statistical population includes all universities and colleges managers, experts in universities’ incubators in mazandaran province. to perform the sampling, the purposive sampling and stratifi...

The purpose of this study is to explore the effect of taking advantage of electronic books on the academic progress of students at Payame Noor University, Iran. This research is of descriptive and survey methodology. The statistical population includes the students of public administration in Shiraz Payame Noor University, who are studying in the academic year 2013-2014. 142 students have been ...