Psychosocial Development and First Substance Use in Third and Fourth Grade Students: A Short-Term Longitudinal Study

Table 1

Estimates of internal consistency and interscale correlations for the subscales of the revised Eriksonian Psychosocial Scale Inventory (EPSI).

	Revised EPSI subscales
	Trust	Autonomy	Initiative	Industry	Identity
(1) Trust	(67/73)	.55	.60	.54	.60
(2) Autonomy	.70	(61/70)	.57	.50	.56
(3) Initiative	.67	.68	(56/64)	.58	.58
(4) Industry	.68	.64	.64	(67/69)	.51
(5) Identity	.69	.71	.66	.64	(61/71)

Diagonal entries are KR-20 coefficients (1st assessment/2nd assessment); off-diagonal entries are Pearson correlation coefficients. (Coefficients above the diagonal emerged from 1st assessment, those below from time 2.)