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Table 7 Test retest Intra Class Correlation Coefficient (ICC) of the EDQ instrument (N = 160)

From: Reliability and construct validity of the Early Dementia Questionnaire (EDQ)

Component Test – retest ICC (95% CI) P-value
Memory 0.796 (0.732, 0.846) <0.001
Concentration 0.831 (0.777, 0.873) <0.001
Physical and Emotional symptoms 0.728 (0.647, 0.793) <0.001
Sleep and Environment 0.811 (0.751, 0.858) <0.001
Total (overall) 0.764 (0.538, 0.865) <0.001