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Table 2 RFFT scores for the study population

From: The validity and reliability of a digital Ruff Figural Fluency Test (RFFT)

  Total study population (N = 94) Allocation P value
Digital RFFT first (N = 50) Paper-and-pencil RFFT first (N = 44)
First visit
 Digital RFFT
  UD (automatic), mean(sd) 84.2 (26.0) 74.1 (24.4) 96.5 (23.3) < 0.01
  PE (automatic), median (IQR) 4 (2–7.3) 4 (2–7.3) 4.5 (2.25–7.8) 0.74
  UD (manual), mean(sd) 85.3 (26.2) 75.1 (25.2) 96.5 (23.2) < 0.01
  PE (manual), median (IQR) 4.5 (2–7.5) 4.75 (2–7.5) 4 (2.5–7.4) 0.99
  Duration in minutes, median (IQR) 12 (11–14) 13 (12–14) 12 (12–12.8) < 0.01
 Paper-and-pencil RFFT
  UD (manual), mean (sd) 91.3 (22.7) 96.9 (22.5) 85.3 (20.8) 0.02
  PE (manual), median (IQR) 4.5 (2–8) 5 (2–8.5) 4 (2–7) 0.29
  Duration in minutes, median (IQR) 10 (9–11) 9 (9–10) 11 (10–12) < 0.01
Second visit
 Digital RFFT
  UD (automatic), mean (SD) 104.4 (22.7) 102.5 (22.4) 106.6 (23.2) 0.46
  PE (automatic), median (IQR) 6 (2–8.3) 6 (2–7.5) 6 (4–9) 0.57
  1. N (%) is presented unless indicated otherwise
  2. UD unique designs, PE perseverative errors, SD standard deviation, IQR interquartile range