Table 1.

Predictions for each study schedule and category structure for test at different retention intervals.

Study schedule	Attentional biasa	Type of category	Test outcome without delaya	Test outcome with delay
Blocked	Within-category similarities	Low similarity	Improved learning	Worse learning
		High similarity	Worse learning	Worse learning
Interleaved	Between-category differences	Low similarity	Worse learning	Improved learning
		High similarity	Improved learning	Improved learning

The kind of study schedule, attentional bias and categories to be learned are described in the first three columns while the last two columns present predictions for learning and retention performance.

^aPredictions based on previous work showing an interaction between category structure and schedule of study (Zulkiply and Burt, 2013; Carvalho and Goldstone, 2014a).