Exploratory factor analysis is commonly used in IS research to detect multivariate data structures. Frequently, the method is blindly applied without checking if the data at hand fulfill the requirements of the method. In this paper, we investigate the influence of sample size, data transformation, factor extraction method, rotation and number of factors on the outcome. We compare classical exp...

The purpose of this paper was to demonstrate empirically that attitudinal loyalty and satisfaction are divergent concepts. The results of this paper indicate that attitudinal loyalty is satisfaction driven and that satisfaction and attitudinal loyalty are related but divergent concepts. However had the analysis relied exclusively on correlation or exploratory factor analysis the empirical resul...

Background: Aggression and violent behavior against health care professionals is a serious problem today and has aroused the interest of researchers and authorities. Objective: The purpose of this study was to examine the reliability and validity of the Management of Aggression and Violence Attitude Scale – Brazil (MAVAS-BR) for use with Brazilian nurses. Method: The MAVAS-BR was applied in a c...

The business value of Enterprise Systems (ES), and in general large software implementations, has been extensively debated in both the popular press and in the academic literature for over three decades. Organizations have invested heavily in Enterprise Systems (and related infrastructure), presumably expecting positive outcomes to the organization. Some studies have reported large productivity...

With the shift in the medical education curriculum to a competencybased model, objective proficiency assessment is necessary. In this work, we use exploratory factor analysis to assess which primitive metrics convey unique information about proficiency in point-of-care ultrasound applications. We retrospectively validate the proposed methods on three datasets: FAST examination, femoral line, an...

The determinants of competitiveness between hub ports in the multipolar Northeast Asian system will decide which achieve regional gateway status. A survey instrument to assess 21 pertinent measurement items generated 203 responses from Shanghai, Hong Kong and Busan. Exploratory factor analysis revealed a valid and reliable competitiveness construct underpinning 19 measurement scales and a four-...

The purposes of this study were (a) to develop a valid and reliable questionnaire using both the structural characteristics of digital games and students perceptions of the concept of freedom of choice in digital games, (b) to validate items to be used in questionnaire to measure perceived freedom of choice, (c) to identify the factors that underlie freedom of choice in digital games and (d) to...

CAPTCHA stands for “Completely Automated Public Turing test to tell Computers and Humans Apart” and has received much attention since it first began appearing on websites. It requires the deciphering of distorted texts, mostly in English which is something that computers still cannot do well. It is also helpful in preventing the abuse of online services. The current text-based CAPTCHA requires ...