The IGD-20 Test comprised 20 items with six different dimensions, using a 5-point Likert scale. Exploratory factor analysis (EFA) and confrmatory factor analysis (CFA) were used to examine the validation; Cronbach's Alpha was performed to test the reliability; and Latent class analysis (LCA)...
Satellite laser ranging to Galileo satellites: symmetry conditions and improved normal point formation strategies High-precision satellite laser ranging measurements to Galileo retroreflector panels are analyzed to determine the angle of incidence of the laser beam bas... MA Steindorfer,F Koidl,G Kirchne...