Fig. 1From: Validity and reliability of the Arabic dyscalculia test in diagnosing Egyptian dyscalculic school-age childrenBland and Altman plot for agreement showing narrow margin of bias from upper limit (4.40) and lower limit (− 4.83) to the arithmetic mean difference of test and retest measurements, which indicate an excellent degree of reliability. Blue line indicates mean difference. Dashed red line indicates 95% confidence interval of differenceBack to article page