Dropping initially correct items incurred a cost relative to a long-ISI conventional schedule in Experiment 2, but this was offset by gains on initially incorrect items¶

Claim · All claims
Evidence · 1 study (2 entries) · causal r2 · q3
Currency · newest study 2007 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q3 i? Final test performance for initially correct items was significantly lower in the 23-drop group than in the 23-23-23 group. → Pyc 2007 q3 i? In Experiment 1, initially correct items in the 23-drop and 5-drop-after-2 groups did not differ significantly from conventional schedules. → Pyc 2007 (2)

Evidence¶

Pyc 2007¶

Pyc, M. A., & Rawson, K. A. (2007). Examining the efficiency of schedules of distributed retrieval practice. Memory & Cognition, 35(8), 1917-1927. https://link.springer.com/article/10.3758/BF03193420

q3 · i? · causal · r2

Experiment 2 conditional analyses, t(41) = 2.07, p = .044; the authors note "the 23-drop group incurred some cost from discontinuing the practice of initially recalled items." A trend favored 23-drop over 5-5-5, t(41) = 1.83, p = .075.

"final test performance for initially correct items was significantly lower in the 23-drop group than in the 23-23-23 group"

Pyc 2007 (2)¶

Pyc, M. A., & Rawson, K. A. (2007). Examining the efficiency of schedules of distributed retrieval practice. Memory & Cognition, 35(8), 1917-1927. https://link.springer.com/article/10.3758/BF03193420

q3 · i? · causal · r2

Experiment 1 conditional analyses (Table 1): 23-drop and 5-drop-after-2 groups, all ts < 1.2; the 5-drop group, by contrast, showed significantly lower performance for initially correct items (t(61) = 6.21 and t(61) = 4.72, p < .001).

"final test performance for initially correct responses for the other two dropout groups did not differ significantly from either conventional schedule"

Discussion¶

Related Claims¶

• The dropout schedule was particularly effective for initially incorrect items, an advantage not attributable to initial ISI length and, the authors judge, unlikely to be due to item difficulty in Experiment 2 — related
• A 23-item-ISI dropout schedule achieved final cued-recall performance similar to conventional schedules while using significantly fewer test-restudy trials in two experiments — related
• The effectiveness of dropout schedules depends critically on the length of the interval between presentations of an item — related
• A short-ISI dropout schedule (5-drop) used significantly fewer trials but yielded lower final test performance than conventional schedules in Experiment 1 — related