Propensity score matching is a tool for causal inference in non-randomized studies that allows for conditioning on large sets of covariates. The use of propensity scores in the social sciences is currently experiencing a tremendous increase; however it is far from a commonly used tool. One impediment towards a more wide-spread use of propensity score methods is the reliance on specialized softw...

Subjects were engineering majors recruited from a freshman-level engineering class from 2007 through 2010. Data were obtained for 256 students. The outcome variable of interest was retention group: Those who were still active in our engineering program after two years of study were classified as persisters. Those who were no longer in our engineering program were classified as having left in go...

OBJECTIVES The present study evaluates the reliability of the Radio Memory® software (Radio Memory; Belo Horizonte, Brasil.) on classifying lower third molars, analyzing intra- and interexaminer agreement of the results. STUDY DESIGN An observational, descriptive study of 280 lower third molars was made. The corresponding orthopantomographs were analyzed by two examiners using the Radio Memor...

Prezi is a Hungarian software company, producing a cloud-based presentation software and storytelling tool for presenting ideas on a virtual canvas (Prezi.com). Prezi is one of the teaching materials that help students in learning process. This study aims to explore the effectiveness of using Prezi in Islamic education subject among secondary schools under the topic of marriage in Islam: polyga...

While dealing with students in making their projects, we found that students are ready to cope up the standard software defined by standard body like IEEE/ACM. In this paper we have set the quality value of standard software on the basis of quality function for each month and comparing with standard software and software being developed. The novel idea of this paper is to calculate the differen...

In this paper, for a given service quality gap problems of emergency WeChat platform, we discuss the general method for determining the trait of emergency WeChat platform, as well as quality framework, evaluation system of emergency WeChat service. For the determination of the trait of emergency WeChat platform, using SPSS mathematical software to draw an initial shape, through the mathematical...