Table 2.

Coefficients, Standard Errors, and 95% Confidence Intervals for the Mediation Model for Executive Function and Episodic Memory

Variables	Direct effects		Path coefficients				Indirect effect for EF
	EF		PA		CA
	b(SE)	CI	b(SE)	CI	b(SE)	CI	b(SE)	CI
Age	−0.029***(0.001)	−0.032,−0.027	−0.027***(0.002)	−0.030, −0.024	0.005***(0.001)	0.003, 0.006
Sex (female)	−0.147***(0.026)	−0.198,−0.095	−0.111***(0.041)	−0.190, −0.032	0.076***(0.024)	0.028, 0.124
Race/ethnicity (white)	0.391***(0.045)	0.304,0.479	0.323***(0.069)	0.189, 0.461	0.070(0.042)	−0.025, 0.157
Education	0.108***(0.006)	0.097,0.118	0.072***(0.008)	0.056, 0.087	0.065***(0.005)	0.055, 0.075
Health	0.116***(0.014)	0.089,0.142	0.169*** (0.022)	0.126, 0.207	0.067***(0.013)	0.044, 0.093
PA	0.059***(0.011)	0.038,0.079					0.004***(0.001)	0.002, 0.006
CA	0.194***(0.019)	0.159,0.2228					0.013***(0.001)	0.009, 0.016
	EM		PA		CA		Indirect effect for EM
	b(SE)	CI	b(SE)	CI	b(SE)	CI	b(SE)	CI
Age	−0.024***(0.001)	−0.026,−0.021	−0.027***(0.002)	−0.030, −0.024	0.005***(0.001)	0.003, 0.006
Sex (female)	0.484***(0.027)	0.425,0.542	−0.109***(0.041)	−0.188, −0.029	0.076***(0.024)	0.028, 0.124
Race/ethnicity (white)	0.223***(0.048)	0.122,0.324	0.323***(0.069)	0.195, 0.468	0.070(0.042)	−0.025, 0.157
Education	0.060***(0.006)	0.047,0.071	0.072***(0.008)	0.056, 0.087	0.065***(0.005)	0.055, 0.075
Health	0.057**(0.014)	0.081,0.137	0.168*** (0.022)	0.126, 0.207	0.067***(0.013)	0.044, 0.093
PA	0.044***(0.013)	0.020,0.068					0.003**(0.001)	0.001, 0.005
CA	0.107***(0.021)	0.067,0.146					0.007***(0.001)	0.004, 0.009

Notes: CA = cognitive activity; EF = executive function; EM = episodic memory; PA = physical activity.

*p < .1, **p < .05, ***p < .01.