Table 4.

Criterion validity: SAI predicting contemporaneous attendance, involvement and PDA^a,b

	Percent days attendance				Involvement				PDA
	B	SE	t	P	B	SE	t	P	B	SE	t	P
3 months
SAI	0.077	0.031	2.48	0.015	0.055	0.026	2.14	0.035	0.272	0.091	2.98	0.004
6 months
SAI	0.103	0.033	3.12	0.002	0.063	0.031	2.04	0.044	0.242	0.132	1.84	0.069
12 months
SAI	0.081	0.032	2.52	0.014	0.230	0.044	5.21	0.000	0.684	0.156	4.38	0.000

^aNote: Attendance and involvement were square root transformed; PDA was transformed using neg.log.

^bControlling for education, baseline PDA and baseline levels of the outcome.