The handwriters completed a questionnaire, to be described, and then had their 2nd and 4th
digit finger lengths measured for both hands. They placed each hand in turn on an A4-size ‘‘sandwich’’
of two thin perspexes with a photocopied transparency of a matrix of 1 mm squares lying in
between, with the perspexes screwed together. The 10 mm divisions were in slightly bolder ink.
Each hand was placed flat, horizontal and with the fingers closed on top of the perspex with
the crease at the base of the palm in line with the 0 cm mark. The index and ring fingers were measured
from this crease to the tip of the finger.