Appendix A: Standardization, Reliability, and Validity Tables

Table A.7. Multivariate Effects of Age and Gender: EQ-i 2.0

The following table summarizes the results from the multivariate analyses of covariance (MANCOVAs) conducted on the composite scales and subscales to examine potential effects of gender, age, or the interaction between gender and age on EQ-i 2.0 scores in the normative sample. Wilks’ lambda ranges from 0.00 to 1.00 and depicts the amount of variance not explained by the demographic variable. F and p values convey the statistical significance of the demographic variables. Partial η2 values provide an effect size for describing the effects as small, medium, or large. Meaningful effect sizes (i.e., partial η2 ≥ .01) suggest differences among participants based on the demographic variable.

Analysis	Demographic Variable	Wilks’ Lambda	F (df)	p	Partial η2
Composite Scales	Gender	.935	55.56 (5, 3984)	< .001	.07
	Age	.955	9.22 (20, 13214.383)	< .001	.01
	Gender × Age	.989	2.16 (20, 13214.38)	.002	.00
Subscales	Gender	.842	46.56 (15, 3970)	< .001	.16
	Age	.854	10.03 (64, 15544.13)	< .001	.04
	Gender × Age	.973	1.67 (64, 15544.13)	.001	.01