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

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 ( <a onClick="popup('http://www.biomedcentral.com/1471-2288/12/127/mathml/M3','MathML',630,470);return false;" target="_blank" href="http://www.biomedcentral.com/1471-2288/12/127/mathml/M3">View MathML</a>), MDC = Minimal detectable change ( <a onClick="popup('http://www.biomedcentral.com/1471-2288/12/127/mathml/M4','MathML',630,470);return false;" target="_blank" href="http://www.biomedcentral.com/1471-2288/12/127/mathml/M4">View MathML</a>.

Schuster et al. BMC Medical Research Methodology 2012 12:127   doi:10.1186/1471-2288-12-127

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