IBM® SPSS® Amos™ 28

Labeling a parameter with a non-numeric name has no effect on the parameter unless another parameter is given the same name. Parameters that have the same name are constrained to have the same estimate. In the following path diagram, the name 'x' is assigned to two regression weights in order to require them to be equal. Also, one other regression weight is fixed at a constant value of 1. The variances of the three exogenous variables, A, B and D are unlabeled and therefore unconstrained. The covariance between A and B is also unconstrained.