Skip to main content

Table 3 Convergent validity and internal consistency of comparator scales assessed for the study sample

From: German translation, cultural adaptation and validation of the unidimensional self-efficacy scale for multiple sclerosis

   Cronbach’s alpha Correlation with USE-MS-G
Musi-QoL ADL 0.93 0.723 (0.664 to 0.774)***
PWB 0.88 0.642 (0.569 to 0.705)***
SPT 0.75 0.535 (0.447 to 0.612)***
RFriends 0.83 0.410 (0.310 to 0.502)***
RFamily 0.89 0.303 (0.195 to 0.403)***
SSL 0.89 0.311 (0.202 to 0.413)***
Cop 0.81 0.557 (0.473 to 0.632)***
Reject 0.80 0.616 (0.539 to 0.682)***
RHealth 0.92 0.437 (0.339 to 0.525)***
Indexa 0.93 0.771 (0.719 to 0.815)***
RS-13 Total 0.91 0.607 (0.530 to 0.675)***
GSE Total 0.91 0.537 (0.450 to 0.614)***
HADS Anx 0.80 −0.451 (−0.538 to −0.354)***
Depr 0.83 −0.751 (−0.797 to − 0.696)***
Total 0.87 −0.679 (− 0.737 to − 0.612)***
NFI-MS Phys 0.92 −0.708 (− 0.761 to − 0.646)***
Cogn 0.85 − 0.519 (− 0.598 to − 0.429)***
Sum 0.93 −0.682 (− 0.739 to − 0.615)***
  1. Abbreviations: Musi-QoL Multiple Sclerosis International Quality of Life questionnaire, ADL activities of daily living, PWB psychological wellbeing, SPT symptoms, RFriends relationships with friends, RFamily relationships with family, SSL sentimental and sexual life, Cop coping, Reject rejection, RHealth relationship with healthcare system, RS-13 Resilience Scale-13, GSE General Self-Efficacy Scale, HADS Hospital Anxiety Depression Scale, Anx anxiety, Depr depression, NFI-MS Neurological Fatigue Index for MS
  2. aThe MusiQoL index is computed only if all dimension scores are computed (non-missing)
  3. Spearman’s correlation coefficients are shown with 95% confidence intervals; ***correlation is significant at the < 0.001 level (2-tailed, p-values corrected for 18 comparisons)