A Brief Report on the Factor Structure of the Cognitive Measures in the HRS/AHEAD Studies

Table 3

Correlations among cognitive measures.

Variable	1	2	3	4	5
(1) Immediate recall	—
(2) Delayed recall	0.76**	—
(3) Serial 7s	0.27**	0.27**	—
(4) Backward counting	0.08	0.09	0.06	—
(5) Dates	0.26**	0.33**	0.26**	0.13*	—
(6) Names	0.20**	0.27**	0.36**	0.21**	0.33**

^∗∗𝑃<0.01.
^∗𝑃<0.05.