Table 2.

Correlations and 95% Confidence Intervals between subscales of the trait FILD, the binary daily LD variable, and the LD scale of the ISES.

Scale	1	2	3	4	5	6	7
(1) Lucidity frequency	–
(2) Lucidity intensitya	0.41∗∗∗	–
	[0.26,0.54]
(3) Emotion after luciditya	0.17	0.34∗∗∗	–
	[0.00,0.32]	[0.18,0.48]
(4) Emotion before luciditya	-0.02	0.09	0.18∗	–
	[-0.19,0.15]	[-0.08,0.25]	[0.01,0.34]
(5) Techniquesb	0.38∗∗	0.17	0.19	0.09	–
	[0.14,0.57]	[-0.10,0.42]	[-0.08,0.44]	[-0.18,0.34]
(6) Daily LDc	0.38∗∗∗	0.18	0.14	0.08	-0.06	–
	[0.17,0.56]	[-0.08,0.41]	[-0.12,0.38]	[-0.18,0.33]	[-0.43,0.33]
(7) ISES LD scale	0.70∗∗∗	0.50∗∗∗	0.17∗	-0.06	0.45∗∗∗	0.37∗∗	–
	[0.62,0.76]	[0.37,0.62]	[0.00,0.33]	[-0.22,0.11]	[0.22,0.62]	[0.07,0.48]

Italics indicate statistically significant correlations. FILD = lucid dreaming questionnaire; lucidity frequency = a scale of the five FILD frequency items (momentary, prolonged, spontaneous, attempt, and success); lucidity intensity = a scale of the five FILD intensity items (confidence, activity, control, length by seconds, and length by scenes); emotion before lucidity = a scale of the two FILD items measuring emotional valence before lucidity onset; emotion after lucidity = a scale of the two FILD items measuring emotional valence after lucidity onset; techniques = a scale of the seven FILD items measuring the frequency of applying techniques for LD induction; daily LD = a dichotomous variable assessing the occurrence or non-ocurrence of LD across the 14 days of the dream diary phase; ISES LD scale = the mean score of the three LD items of the Iowa sleep experiences survey. ^∗p < 0.05, ^∗∗p < 0.01, ^∗∗∗p < 0.001. ^aBased only on N = 142. ^bBased only on N = 64. ^cBased only on N = 78.