Table 3.

Goodness of fit indexes for the ESSENCE-Q forms

ESSENCE-Q form	Chi-squared/df	CFI	TLI	RMSEA
Parent-completed*	1.95	0.95	0.93	0.08
Telephone interview**	2.19	0.92	0.90	0.08
Direct interview***	3.01	0.82	0.76	0.13

Notes: Root mean square error of approximation.

^*Error correlations between items “general development” and “motor development/milestones”, items “activity (overactivity/passivity) or impulsivity” and “attention/concentration/listening”, and items “sensory reactions” and “mood”;

^**Error correlations between items “social interaction/interest in other children” and “behavior”;

^***Error correlations between items “general development” and “motor development/milestones” and items “activity (overactivity/passivity) or impulsivity” and “attention/concentration/listening”.

Abbreviations: CFI, comparative fit index; ESSENCE-Q, Early Symptomatic Syndromes Eliciting Neurodevelopmental Clinical Examinations – Questionnaire; RMSEA, root mean square error of approximation; TLI, Tucker–Lewis index.