** p < .01. Factor loadings of observed indicators and stability of temperament from age 3 to 12 years. All parameters are standardized estimates. Covariances on observed variable are covariances on the error terms of those variables. Error term on endogenous variables not depicted. Lab-TAB = Laboratory Temperament Assessment Battery, EC = Effortful Control, Imp = Impulsivity, EI = Experimenter Impressions, CBQ = Child Behavior Questionnaire, NA = Negative Affectivity, EC = Effortful Control, SNAP = Schedule for Non-adaptive and Adaptive Personality for Youth, NT = Negative Temperament, DIS = Disinhibition, PT = Positive Temperament, Mother = Mother-rated, Father = Father-rated, Child = Child-rated.