“…Other characteristics related to better functioning on cognitive measures include female gender (for verbal tasks) (Bleeker, Bolla-Wilson, Agnew, & Meyers, 1988;Paulo, Troester, & Ryan, 1997;Youngjohn, Larrabee, & Crook, 1991), increased education (e.g., Denny & Palmer, 1981;Ripple & Jaquish, 1981;Selzer & Denny, 1980), better physical health (e.g., Elias et al, 1990;Perlmutter et al, 1988;Perlmutter & Nyquist, 1990), and a higher level of activity (Albert et al, 1995). An increased level of depression may be related to poorer performance (e.g., Dufouil, Fuhrer, Darfigues, & Alperovitch, 1996;Fuhrer et al, 1992;Scherr et al, 1988), whereas smoking holds an ambiguous status (Hebert et al, 1993;Letenneur et al, 1994;Warburton, 1992).…”