Table 3 Hayling sentence completion test scores calculation [3]

A first transformation of results (response time and number of errors for each participant) via (LOG₁₀ + 1) ➔ A for response time and B for number of errors.

Second transformation using formulas mentioned in the French version:

a. Response time: ŷ = A + (0.002x age) - (0.008x education)

b. Number of errors: ŷ = B + (0.003xage) - (0.02x education)

Z score calculation using the second transformation

Classification depending on Zscores:

a. ≤ −1.65 pathologic;

b. [−1.64 → -1] limit;

c. [− 0.99 → + 0.99] normal;

d. [+ 1 → + 1.64] superior;

e. ≥ + 1.65 very superior.