Skip to main content

Table 1 Scale internal alphas (Alpha 1, current study; Alpha 2, previous study) and scores (means ± S.D.) of the Nightmare Experience Questionnaire (NEQ), Family Relationship Questionnaire (FRQ), and Plutchik - van Praag Depression Inventory (PVP), in nightmare disorder patients (Patients, n = 62) and healthy volunteers (Controls, n = 135)

From: Nightmare experience and family relationships in healthy volunteers and nightmare disorder patients

Scale Alpha 1 Alpha 2 Patients Controls 95% Confidence Interval
NEQ
 Physical Effect .80 .85 10.00 ± 3.90* 6.64 ± 2.28 2.30 ~  4.42
 Negative Emotion .80 .80 19.13 ± 4.04* 17.25 ± 4.75 .50 ~  3.25
 Meaning Interpretation .62 .65 16.50 ± 3.57* 13.53 ± 4.11 1.78 ~  4.17
 Horrible Stimulation .68 .69 14.44 ± 4.14* 12.21 ± 4.26 .94 ~  3.50
 Annual Frequency    32.45 ± 27.78* 2.10 ± 0.80 23.29 ~  37.40
FRQ
 General Attachment .60 .64 16.60 ± 3.61* 17.78 ± 3.71 −2.29 ~ − .07
 Maternal Encouragement .70 .71 14.92 ± 4.04* 16.75 ± 4.07 −3.06 ~ − .60
 Maternal Abuse .79 .79 8.21 ± 3.45 7.97 ± 3.87 −.90 ~  1.37
 Maternal Freedom Release .86 .84 17.39 ± 4.61* 18.87 ± 4.25 −2.80 ~ − .16
 Maternal Dominance .67 .65 12.05 ± 3.74 11.86 ± 3.38 −.87 ~  1.25
 Paternal Encouragement .78 .74 12.26 ± 4.50 12.96 ± 4.67 −2.10 ~ .70
 Paternal Abuse .65 .77 8.47 ± 3.99* 7.24 ± 2.48 .13 ~  2.32
 Paternal Freedom Release .86 .83 17.10 ± 4.82* 18.75 ± 4.37 −3.02 ~ − .28
 Paternal Dominance .61 .62 11.63 ± 3.38 11.47 ± 3.64 −.92 ~  1.24
PVP .85 .94 14.42 ± 8.05* 10.17 ± 6.30 1.95 ~  6.55
  1. Note: *p < .05 vs. healthy volunteers