Dataset:  biometer_foot.dat

Source: D. Freeman, A. Jaeger, R. Johnson, S. Geletta, K. Cooper, P. Toney (2007).
"Reliability Study of the Phillips Biometer for the Measurement of Subtalar 
Joint Range of Motion," The Foot, Vol. 17, pp. 102-110.

Description: Reliability study involving 12 subjects and 2 testers using Phillips
Biometer to measure inversion and eversion of subtalar joint. Each tester
measured each subject twice for inversion and eversion on each of 2 days.

Variables/Columns
Subject      7-8
Inversion/eversion   16   /* 1=I, 2=E */
Tester       24
Day          32
Trial number  40
angle         47-48