Table 1. Results declarative word-pair task.

Afternoon group n = 25		Evening group n = 25	F	P
Word pair performance on Day 1
N° of trials to criterion	1.3±0.5	1.5±0.5	3.1	0.086
N° of retrieved word pairs	35.0±4.7	36.4±4.3	1.1	0.304
Retention rate referred to Day 1
Word pair retention rate on Day 2, %	98.7±6.6	95.0±3.5	6.1	0.016
Word pair retention rate on Day 8, %	96.1±5.7	92.1±5.6	3.9	0.053

Values represent means ± SD. N°, number. Statistics refer to direct comparisons between the afternoon and evening group. Significant values are given in bold, P<0.05.