THE SPACING EFFECT IN SHORT-TERM MEMORY TASK AND CONFIRMATION OF THE BOUNDARY STRENGTH HYPOTHESIS
Yukimasa Nomura · The Japanese journal of psychology · 1975
The principal purpose of the present study was to examine the adequacy of Saltz's boundary strength hypothesis in accounting for the so-called spacing effect in shortterm memory task. Exp. I was designed to investigate the problem manipulating both the spacing interval and the intervening task difficulty. In Exp. II, the intervening task difficulty in both the spacing and the retention intervals were manipulated. The results of Exp. I showed the interaction of these independent variables, thus supporting Saltz's boundary strength hypothesis. But Exp. II showed no interaction of these independent variables and did not confirm this hypothesis.