Table 4.

Trimmed hierarchical regression analyses for the Ages and Stages-3 fine motor and problem solving scales

Predictor Variables	β	B	Std. Error	R	R 2	∆R 2	F	∆F
a) Fine Motor
Step 1				0.231	0.053	0.053	6.376*	6.376*
Objective Stress	−0.231*	−3.442	1.363
Step 2				0.320	0.102	0.049	6.391**	6.117*
Objective Stress	−0.224*	−3.337	1.334
Model of Care	0.222*	5.273	2.132
Step 3				0.353	0.125	0.022	5.278**	2.842§
Objective Stress	−0.191*	−2.841	1.355
Model of Care	0.227*	5.397	2.116
Depression	−0.153§	−0.433	0.257
b) Problem Solving
Step 1				0.190	0.036	0.036	4.234*	4.234*
Objective Stress	−0.190*	−2.462	1.197
Step 2				0.315	0.099	0.063	6.180**	7.868**
Objective Stress	−0.182*	−2.359	1.162
Model of Care	0.252**	5.212	1.858
Step 3				0.385	0.149	0.049	6.453***	6.404*
Objective Stress	−0.175*	−2.264	1.136
Model of Care	0.204*	4.217	1.857
Birthweight	0.227*	0.005	0.002

***p < .001; **p < .01; * p < .05; ^§ p < .1 Model of care: 0 = SC, 1 = MGP