According to the homogeneity test for error variance on total-effect random model with three factors in double repeated experiment, the specific formulae of test statistics and test rule are deduced.

Repeated experience. The double bind is a recurrent theme in the experience of the victim and as such cannot be constituted as a single traumatic experience.

The detailed practice: double foot together with, forced on the heel, adhere to the 2 ~ 3 seconds, can be repeated many times.