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

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 ( $S E M = s * \sqrt{1 - r}$ ), MDC = Minimal detectable change ( $M D C = 1.96 * \sqrt{2} * S E M$ .

ISSN: 1471-2288