Efficacy and mechanisms of imagery rescripting and imaginal exposure for nightmares: study protocol for a randomized controlled trial

Table 1 Summary of measures

Measure	Description	T1	T2	T3	T4	T5	F1	F2
Primary outcome measures
NFQ	Number of nightmares	+	+	+	+	+	+	+
NDIQ	Nightmare distress and impact	+	+	+	+	+	+	+
Secondary outcome measures
NFQ	Nights with nightmares	+	+	+	+	+	+	+
ZIL	PTSD symptoms	+				+	+	+
ISI	Sleep complaints	+				+	+	+
NBQ	Nightmare beliefs	+				+	+	+
Diagnostic measures
DSM-5	Nightmare disorder	+				+
SCID-I	DSM-IV-TR Axis-I disorders	+				+
Mediators of change		+	+	+	+	+
Imagery Exercise		+	+	+	+	+

Note. T1 = Pre assessment, T2 = Week 1, T3 = Week 2, T4 = Week 3, T5 = Post assessment, F1 = 3-month follow-up, F2 = 6-month follow-up. Mediators of change are assessed at T + 1 day. DSM-5 = Diagnostic and Statistical Manual, 5th edition; ISI = Insomnia Sensitivity Index; NBQ = Nightmare Beliefs Questionnaire; NDIQ = Nightmare Distress and Impact Questionnaire; NFQ = Nightmare Frequency Questionnaire; SCID-I = Structured Clinical Interview for DSM-IV-TR Axis-I disorders; ZIL = Zelf-Inventarisatie Lijst (Self-inventory List)

ISSN: 1745-6215