Gerstorf, Denis; Hülür, Gizem; Drewelies, Johanna; … - 2015
-matched control design (per cohort, n = 161, Mage = 75), quantified sample selection using a nationally representative sample as the … reference, and controlled for number of physical diseases. The later cohort performed better on the fluid intelligence measure … (d = .85) and reported higher morale, less negative affect, and more positive affect (ds > .39) than the earlier cohort …