Table 2.

Test of Mediation Models of the Development of Attachment Representations in Adulthood from Observed Maternal Sensitivity in Childhood

Model 1: Maternal Sensitivity to AAI Coherence at 26 Mediated by Script Knowledge at 19
Predictor/Outcome	Total effect	Direct effect	Indirect effect: Mediation by SBSK19			Effect Size
	c	c’	a	b	a × b
	B[95% CI]	B[95% CI]	B[95% CI]	B [95% CI]	B [95% CI]	κ2	I/T
Mat. Sen./AAIcoh26	.53[.05, .99]	.32[−.18, .81]	.90[.49, 1.31]	.23[.05, .41]	.21[.05, .41]	.07	.40
Model 2: Maternal Sensitivity to Script Knowledge at 26 Mediated by AAI coherence at 19
Predictor/Outcome	Total effect	Direct effect	Indirect effect: Mediation by AAIcoh19			Effect Size
	c	c’	a	b	a × b
	B[95% CI]	B[95% CI]	B[95% CI]	B [95% CI]	B [95% CI]	κ2	I/T
Mat. Sen./SBSK26	.71[.40, 1.02]	.67[.37, .98]	.33[−.11, .77]	.13[.02, .24]	.04[−.003, .14]	.02	.06

Note. AAIcoh19 = AAI coherence of mind measured at 19 years, AAIcoh26 = AAI coherence of mind measured at 26 years, SBSK19 = Secure base script knowledge coded from the AAI at 19 years, SBSK26 = Secure base script knowledge coded from the AAI at 26 years, Mat. Sen. = Maternal sensitivity, κ² = Preacher & Kelley (2011) effect size, I/T = Indirect effect/Total effect. c refers to the slope of the regression of the outcome variable on the predictor variable, c′ refers to the slope of the outcome variable on the predictor variable (after controlling for the intervening variable), a refers to the slope of the regression of the intervening variable on the predictor variable, b refers to the slope of the regression of the outcome variable on the intervening variable, and a × b refers to product of the a and b paths.