TABLE 3.

Rapid eye movement and NREM 2 Sleep Awakening and Recall Profile (N = 36).

	Group
	HFR	LFR
Variable	(n = 19)	(n = 17)	t/U/χ2	p	ESE
Long REM Awakenings	0.26 (0.45)	0.71 (1.05)	130.00	0.23	0.27
Long NREM 2 Awakenings	2.68 (1.73)	1.24 (1.15)	2.92	0.006∗∗	0.98
REM Recall Ratea	50%	28.6%	0.63	0.59	0.22
NREM 2 Recall Rateb	81.3%	30%	6.83	0.015∗	0.51

HFR, High Frequency Recall Individuals; LFR, Low Frequency Recall Individuals. For Long (≥2 minute) awakenings and Long N2 Awakenings means are presented with standard deviations, while Mann–Whitney U was computed for the former and t for the latter. Chi-square statistic was computed for REM Recall Rate and NREM 2 Recall Rate.^aREM Recall Rate was based on 6 and 7 dream reports for HFRs and LFRs, respectively. ^bNREM 2 Recall Rate was based on 16 dream reports from the HFR group and 10 from the LFR group. ESE, effect size estimate (for t, Cohen’s d; for U, r; for χ², Cramer’s V). ^∗p < 0.05. ^∗∗p < 0.01.