# Covariance matrix from Wheaton, Muthén, Alwin, and Summers. # "Assessing reliability and stability in panel models," # Sociological Methodology, 1977, 84-136. S.Wheaton <- read.moments(names=c('Anomia67','Powerless67','Anomia71', 'Powerless71','Education','SEI')) 11.834 6.947 9.364 6.819 5.091 12.532 4.783 5.028 7.495 9.986 -3.839 -3.889 -3.841 -3.625 9.610 -21.899 -18.831 -21.748 -18.775 35.522 450.288