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Table 3 Intra-observer TEM and average bias of length measurements of health volunteers by standardization sessiona, b

From: Reliability of length measurements collected by community nurses and health volunteers in rural growth monitoring and promotion services

Volunteer Session A (N = 15) Session B (N = 15)
  Intra-observer TEMa Average biasb Intra-observer TEMa Average biasb
A 0.79 −0.07 0.63 −0.10
B 1.00 −0.22 0.63 −0.10
C 1.04 −0.47 0.97 −0.30
D 0.34 −0.40 0.10 −0.08
E 1.29 0.54 1.89c − 0.28
F 0.97 0.08 0.67 0.75
G 1.85 0.54 0.61 0.62
H 1.13 −0.13 1.31 0.35
I 0.66 −0.15 1.12 −0.35
J 0.79 −0.63 2.50c 0.75
K 2.30c 0.28 0.64 − 0.08
L 0.97 0.38 1.95c 0.13
M 0.64 −0.60 1.16 0.45
N 1.11 −0.85 1.49c − 0.03
O 1.12 0.11 0.60 −0.03
  1. aTEM: Technical error of measurement (Unit of TEM is cm)
  2. bAverage bias from expert anthropometrist
  3. cUnacceptable according to error standards (2 * Intra-TEM of the expert)
  4. Average bias for each health volunteer met acceptable error standards (2.8 * Intra-TEM of the expert)