我在用mplus做带调节的中介分析时,发现模型算不出来,output会报如下的错误:
WARNING: THE SAMPLE COVARIANCE IS SINGULAR.
WARNING: THE SAMPLE CORRELATION OF GENDER_1 AND NEGATIVE IS -1.000.
NO CONVERGENCE. SERIOUS PROBLEMS IN ITERATIONS.
CHECK YOUR DATA, STARTING VALUES AND MODEL.
想问下这种情况可能是由什么原因导致的呀?应该如何解决呢?