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Table 2 ICC values for intertester reliability

From: Reliability of voluntary step execution behavior under single and dual task conditions

   IPD PPD SPD FOT FCT
Single Task Elderly
N = 16
0.79*** 0.76*** 0.64** 0.82*** 0.82***
  Younger
N = 24
0.70*** 0.78*** 0.46** 0.79*** 0.78***
  Pooled
N = 40
0.86*** 0.81*** 0.60*** 0.87*** 0.84***
Dual Task Elderly
N = 16
0.70*** 0.70*** 0.32 ns 0.83*** 0.74***
  Younger
N = 24
0.73*** 0.88*** 0.77*** 0.68*** 0.82***
  Pooled
N = 40
0.79*** 0.82*** 0.55* 0.88*** 0.86***
  1. Table 2 shows ICC(2,1) values and significance levels (in parenthesis) for intertester reliability (Rater 1 vs. Rater 2) for step execution parameters Initiation Phase Duration (IPD), Preparatory Phase Duration (PPD), Swing Phase Duration (SPD), Foot-Off Time (FOT) and Foot-Contact Time (FCT) under single and dual task conditions calculated separately for elderly subjects (N = 16), younger adult subjects (N = 24) and the pooled population of elderly and younger adult subjects (N = 40). An average of all six step trials (three forward and three backward) was used in the analysis (ns – not significant, *p < 0.05, **p < 0.01, ***p < 0.001).