The phenomenon of excessive or pathological Internet use has been investigated in the last decades in order to reveal psychological correlates as well as potential treatments. A key element of the respective research and clinical practice is a valid and reliable diagnosis of pathological Internet use. One of the most frequently used questionnaires is Young's Internet Addiction Test (IAT). Howev...

In a task such as face recognition, much of the important information may be contained in the high-order relationships among the image pixels. A number of face recognition algorithms employ principal component analysis (PCA), which is based on the second-order statistics of the image set, and does not address high-order statistical dependencies such as the relationships among three or more pixe...

This study suggests two approaches to factorial invariance testing with multilevel data when the groups are at the within level: multilevel factor mixture model for known classes (ML FMM) and multilevel multiple indicators multiple causes model (ML MIMIC). The adequacy of the proposed approaches was investigated using Monte Carlo simulations. Additionally, the performance of different types of ...

High investments needed by Information Technology (IT) require accuracy and alignment with organizational strategies as well as responsibility from all areas of the organization. This scenario brought importance to Information Technology Governance (ITG) in public and private organizations management in recent years. This research used secondary data from Sao Paulo State Departments and used fa...