Table 1.
Distribution of age, gender and educational level in the reference sample.
Figure 1.
Mean number of unique designs dependent on age and educational level.
*, only reported for persons with a high educational level as the number of persons with a low educational level was small in this age group. Bars represent 95% confidence intervals.
Table 2.
Number of unique designs for low educational level (≤12 years): percentile scores dependent on age.
Table 3.
Number of unique designs for high educational level (>12 years): percentile scores dependent on age.
Figure 2.
Median number of perseverative errors dependent on age and educational level.
*, only reported for persons with a high educational level as the number of persons with a low educational level was small in this age group. Upper bars represent 75th percentile, lower bars represent 25th percentile.
Table 4.
Perseverative errors for all educational levels: percentile scores dependent on agea.
Figure 3.
Median error ratio dependent on age and educational level.
*, only reported for persons with a high educational level as the number of persons with a low educational level was small in this age group. Upper bars represent 75th percentile, lower bars represent 25th percentile. The difference between low and high educational level was statistically significant (p<0.001).
Table 5.
Error ratio for low educational level (≤12 years): percentile scores dependent on agea.
Table 6.
Error ratio for high educational level (>12 years): percentile scores dependent on agea.
Figure 4.
Five-dot patterns in parts 1 to 5 of the Ruff Figural Fluency Test [8].
Each part consists of 35 identical five-dot patterns.