Table 3.

Composition and Sequence of Testing Regression Models

	Model Number
Variables to Be Entered	1	2	3	4	5	6
Duration of Exposure
Time in Baby Home	X	X	X	X	X	X
Time in Family	X	X	X	X	X	X
Baby Home
T+SC vs. NoI		X	X	X	X	X
TO vs. NoI		X	X	X	X	X
Baby Home X Time in Baby Home
T+SC vs. NoI X Time in Baby Home			X	X	X	X
TO vs. NoI X Time in Baby Home			X	X	X	X
Family Type
Non-Relatives vs. Relatives				X	X	X
Family Type X Time in Family
Non-Relatives vs. Relatives X Time in Family					X	X
Family Type X Baby Home
Non-Relatives vs. Relatives X T+SC vs. NoI					X
Non-Relatives vs. Relatives X TO vs. NoI					X

Bold Xs indicate the effect tested when this model is compared with the previous model.

Rel. = Relatives, Non-Rel. = Non-Relative Families; NoI = No Intervention, TO = Training Only, T+SC = Training & Structural Changes