Negative survey is a promising method which can protect personal privacy while collecting sensitive data. Most of previous works focus on negative survey models with specific hypothesis, e.g., the probability of selecting negative categories follows the uniform distribution or Gaussian distribution. Moreover, as far as we know, negative survey is never conducted with manual selection in real wo...

background: there are no general strategies or tools to evaluate daily lesson plans; however, assessments conducted using traditional methods usually include course plans. this study aimed to evaluate the strengths and weaknesses of online survey software in collecting data on education in medical fields and the application of such softwares to evaluate students' views and modification of ...

An important parameter that defines the effectiveness and efficiency of any optical or infrared sky survey is the atmospheric characteristics of the observing site. Of prime importance is the sky spectral brightness, which determines the sensitivities and the observing time required to complete a particular survey. This paper presents observations of the near-infrared sky spectral brightness me...

IC ER SPTIVES On contentious issues such as gun control, where advocacy groups on both sides claim to have the weight of public opinion behind them, polling can help clarify what Americans really think. Three decades of polling have painted a clear picture of public opinion about gun control. These polls show that public support for the regulation of firearms is strong, deep, and widespread. La...

This paper studies completed parity distributions for all the industrialized and developing countries that participated in the World Fertility Survey. This is done by means of a table based on parity calculated for all ever-married women above age 40 by educational and residential subcategories. The information is also used to compare mean family and mean sibship sizes and to study changes in...