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Table 7 Internal consistency, SEM and MDC for all questionnaire subscales at T0

From: Two assessments to evaluate imagery ability: translation, test-retest reliability and concurrent validity of the German KVIQ and Imaprax

N = 73 KVIQ-G 10 visual KVIQ-G 20 visual KVIQ-G 10 kinaesthetic KVIQ-G 20 kinaesthetic KVIQ-G total visual + kinaesthetic Imaprax-G visual
Cronbach’s α 0.88 0.94 0.92 0.96 0.95 0.70
95% CI (two sided) 0.83 – 0.92 0.92 – 0.96 0.88 – 0.94 0.94 – 0.97 0.93 - 96 0.57 – 0.79
SEM 1.56 2.2 1.73 2.4 4.0 0.3
MDC 4.3 6.2 4.8 6.7 11.1 0.9
  1. Legend: KVIQ-G 10 or 20 = Kinaesthetic and Visual Imagery Questionnaire German version – short (10 items each body side) or long (20 items each body side) version, Imaprax-G = Imaprax German version, CI = confidence interval, SEM = Standard error of measurement ( S E M = s * 1 r ), MDC = Minimal detectable change ( M D C = 1.96 * 2 * S E M .