Edward Mak posted on Monday, July 21, 2008 - 6:22 am
Dear Muthen, I have got the following error message. how could I deal with it? Thank you very much.
two level CFA
*** FATAL ERROR
THE SAMPLE BETWEEN COVARIANCE MATRIX COULD NOT BE INVERTED. THIS CAN OCCUR IF A VARIABLE HAS NO VARIATION, OR IF TWO VARIABLES ARE PERFECTLY CORRELATED, OR IF THE NUMBER OF CLUSTERS IS NOT GREATER THAN THE NUMBER OF VARIABLES. CHECK YOUR DATA. THE PROBLEM IS DUE TO: